Those looking for a convention bump may find what they are looking for in the Gallup daily tracking poll, which produced good news on Friday for President Barack Obama.

Gallup's last three nights of interviewing of adults, conducted Sept. 4 to 6, shows Obama with a 52 percent approval rating, the highest approval percentage reported for Obama on the Gallup tracking poll since May 2011, just after the killing of Osama bin Laden.

The latest results represent a seven percentage point increase in Obama's approval rating, from 45 percent, from Gallup's previous three-day sample, conducted Sept. 1 to 3. Each sample is based on interviews with roughly 1,500 adults and has a margin of sampling error of +/- 3 percent.

Gallup also shows an uptick for Obama in their tracking of the presidential vote preference question. Results released Friday show Obama with a 3-point lead over Republican nominee Mitt Romney (48 to 45 percent). That result represents an upward movement of just a single percentage point for Obama and a single point down for Romney, but it is the first change in Gallup's numbers in 9 days. From Aug. 28 to Sept. 5, Gallup has shown Obama ahead of Romney by a single percent point (47 to 46 percent).

The more muted reaction on the vote question is likely due to interviews being conducted over a longer period of time. Gallup reports presidential vote preference for registered voters using a seven-day rolling average rather than the three-day roll up of adults used to report their job approval rating. If Gallup is picking up movement on their vote question to match the shift in the Obama approval rating, and if that change persists, the vote numbers should continue to move in Obama's direction as well.

Most other prominent national pollsters have not been fielding surveys during the course of the two conventions, in part because of the historic tendency of polls to "bounce" up and down as the conventions are underway. Other daily tracking polls -- such as the automated telephone surveys conducted by Rasmussen Reports or the new Internet-based survey conducted by Reuters-Ipsos -- have not yet picked up a pro-Obama bounce.

The bigger question, of course, is whether this change is just a momentary "bump" in Gallup's numbers, or if it represents a meaningful change in voter preferences that will persist beyond convention week.

UPDATE: 5:31 p.m. -- Friday's update of the Reuters/Ipsos online poll also found indications of what Reuters describes as a "convention induced bounce," though the change was also modest. It showed Obama taking a 46 to 44 percent lead over Romney on interviews conducted with likely voters over the last five days. On interviews conducted over the five days before that, the Ipsos poll showed a 45-to-45 percent tie.

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  • President Barack Obama laughs with his wife Michelle and his daughters Malia and Sasha after his speech to the Democratic National Convention in Charlotte, N.C., on Thursday, Sept. 6, 2012. (AP Photo/Lynne Sladky)

  • President Barack Obama waves with his wife Michelle and his daughters Malia and Sasha after his speech to the Democratic National Convention in Charlotte, N.C., on Thursday, Sept. 6, 2012. (AP Photo/Lynne Sladky)

  • Joe Biden, Barack Obama

    Vice President Joe Biden and President Barack Obama wave to the delegates at the conclusion of Presdident Obama's speech at the Democratic National Convention in Charlotte, N.C., on Thursday, Sept. 6, 2012. (AP Photo/J. Scott Applewhite)

  • President Barack Obama waves with his wife Michelle and his daughters Malia and Sasha after his speech to the Democratic National Convention in Charlotte, N.C., on Thursday, Sept. 6, 2012. (AP Photo/Lynne Sladky)

  • President Barack Obama waves with his wife Michelle and his daughters Malia and Sasha after his speech to the Democratic National Convention in Charlotte, N.C., on Thursday, Sept. 6, 2012. (AP Photo/Lynne Sladky)

  • President Barack Obama waves with his wife Michelle and his daughters Malia and Sasha after his speech to the Democratic National Convention in Charlotte, N.C., on Thursday, Sept. 6, 2012. (AP Photo/Lynne Sladky)

  • President Barack Obama waves with his wife Michelle and his daughters Malia and Sasha after his speech to the Democratic National Convention in Charlotte, N.C., on Thursday, Sept. 6, 2012. (AP Photo/Charlie Neibergall)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic presidential candidate, U.S. President Barack Obama stands with his family, (L-R) First lady Michelle Obama, Sasha Obama, and Malia Obama during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Chip Somodevilla/Getty Images)

  • US-VOTE-2012-DEMOCRATIC CONVENTION

    US President Barack Obama, First Lady Michelle Obama, daughters Malia (L) and Sasha (C) wave after Obama's acceptance speech at the Time Warner Cable Arena in Charlotte, North Carolina, on September 6, 2012 on the final day of the Democratic National Convention (DNC). AFP PHOTO Stan HONDA (Photo credit should read STAN HONDA/AFP/GettyImages)

  • Barack Obama

    President Barack Obama speaks at the Democratic National Convention in Charlotte, N.C., Thursday, Sept. 6, 2012. (AP Photo/Pablo Martinez Monsivais)

  • US-VOTE-2012-DEMOCRATIC CONVENTION

    Supporters listen as US President Barack Obama delivers his acceptance to run for a second term as president at the Time Warner Cable Arena in Charlotte, North Carolina, on September 6, 2012 on the final day of the Democratic National Convention (DNC). AFP PHOTO Brendan SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/GettyImages)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic presidential candidate, U.S. President Barack Obama speaks on stage as he accepts the nomination for president during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Win McNamee/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic presidential candidate, U.S. President Barack Obama speaks on stage as he accepts the nomination for president during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Streeter Lecka/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: (L-R) Marian Robinson, Malia Obama, Sasha Obama, First lady Michelle Obama and Second lady Dr. Jill Biden watch as Democratic presidential candidate, U.S. President Barack Obama speaks on stage during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Scott Olson/Getty Images)

  • From left, Michelle Obama's mother Marian, Malia and Sasha Obama, their mother Michelle and Dr. Jill Biden, wife of Vice President Biden, listen to President Barack Obama at the Democratic National Convention in Charlotte, N.C., on Thursday, Sept. 6, 2012. (AP Photo/Lynne Sladky)

  • US-VOTE-2012-DEMOCRATIC CONVENTION

    US President Barack Obama as he delivers his acceptance to run for a second term as president at the Time Warner Cable Arena in Charlotte, North Carolina, on September 6, 2012 on the final day of the Democratic National Convention (DNC). AFP PHOTO Brendan SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/GettyImages)

  • US-VOTE-2012-DEMOCRATIC CONVENTION

    The First family welcomes US President Barack Obama as he delivers his acceptance to run for a second term as president at the Time Warner Cable Arena in Charlotte, North Carolina, on September 6, 2012 on the final day of the Democratic National Convention (DNC). From L-R, first row: Mother-in-law Marian Robinson, daughter Malia, daughter Sasha, First Lady Michelle Obama, Second Lady Dr. Jill Biden and Mrs.Obama's brother Craig Robinson (3rd R, second row). AFP PHOTO Brendan SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/GettyImages)

  • US-VOTE-2012-DEMOCRATIC CONVENTION

    US President Barack Obama delivers his acceptance to run for a second term as president at the Time Warner Cable Arena in Charlotte, North Carolina, on September 6, 2012 on the final day of the Democratic National Convention (DNC). EDITORS NOTE: Image was shot with a tilt-shift lens. AFP PHOTO Brendan SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/GettyImages)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic presidential candidate, U.S. President Barack Obama claps on stage as he accepts the nomination for president during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Win McNamee/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic presidential candidate, U.S. President Barack Obama speaks on stage to accept the nomination for president during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Chip Somodevilla/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic presidential candidate, U.S. President Barack Obama speaks on stage as he accepts the nomination for president during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Kevork Djansezian/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic presidential candidate, U.S. President Barack Obama speaks on stage as he accepts the nomination for president during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Joe Raedle/Getty Images)

  • US-VOTE-2012-DEMOCRATIC CONVENTION

    First daughters Malia (L) and Sasha (C) confer as US President Barack Obama delivers his acceptance to run for a second term as president at the Time Warner Cable Arena in Charlotte, North Carolina, on September 6, 2012 on the final day of the Democratic National Convention (DNC). AFP PHOTO Robyn BECK (Photo credit should read ROBYN BECK/AFP/GettyImages)

  • US-VOTE-2012-DEMOCRATIC CONVENTION

    First Lady Michelle Obama (R) looks over at daughters Malia (L) and Sasha (C) as US President Barack Obama delivers his acceptance to run for a second term as president at the Time Warner Cable Arena in Charlotte, North Carolina, on September 6, 2012 on the final day of the Democratic National Convention (DNC). AFP PHOTO Robyn BECK (Photo credit should read ROBYN BECK/AFP/GettyImages)

  • US-VOTE-2012-DEMOCRATIC CONVENTION

    First Lady Michelle Obama (2nd R) looks over at daughters Malia (L) and Sasha (C) as US President Barack Obama delivers his acceptance to run for a second term as president at the Time Warner Cable Arena in Charlotte, North Carolina, on September 6, 2012 on the final day of the Democratic National Convention (DNC). AFP PHOTO Robyn BECK (Photo credit should read ROBYN BECK/AFP/GettyImages)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: (L-R) Malia Obama, Sasha Obama, and First lady Michelle Obama listen as Democratic presidential candidate, U.S. President Barack Obama speaks on stage during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Chip Somodevilla/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic presidential candidate, U.S. President Barack Obama speaks on stage to accept the nomination for president during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Alex Wong/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic presidential candidate, U.S. President Barack Obama speaks on stage to accept the nomination for president during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Alex Wong/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic presidential candidate, U.S. President Barack Obama speaks on stage to accept the nomination for president during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Chip Somodevilla/Getty Images)

  • President Barack Obama waves to candidates at the Democratic National Convention in Charlotte, N.C., on Thursday, Sept. 6, 2012. (AP Photo/Lynne Sladky)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic presidential candidate, U.S. President Barack Obama waves on stage as he accepts the nomination for president during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Justin Sullivan/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic presidential candidate, U.S. President Barack Obama speaks on stage to accept the nomination for president during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Justin Sullivan/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic presidential candidate, U.S. President Barack Obama speaks on stage to accept the nomination for president during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Justin Sullivan/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic presidential candidate, U.S. President Barack Obama speaks on stage to accept the nomination for president during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Chip Somodevilla/Getty Images)

  • President Barack Obama applauds before his speech to the Democratic National Convention in Charlotte, N.C., on Thursday, Sept. 6, 2012. (AP Photo/Lynne Sladky)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: (L-R) Malia Obama, Sasha Obama, and First lady Michelle Obama listen as Democratic presidential candidate, U.S. President Barack Obama speaks on stage during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Chip Somodevilla/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: (L-R) Malia Obama, Sasha Obama, First lady Michelle Obama and Second lady Dr. Jill Biden watch as Democratic presidential candidate, U.S. President Barack Obama speaks during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Justin Sullivan/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: First lady Michelle Obama hughs Democratic presidential candidate, U.S. President Barack Obama on stage during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Justin Sullivan/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic presidential candidate, U.S. President Barack Obama hugs his wife First lady Michelle Obama during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Alex Wong/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic presidential candidate, U.S. President Barack Obama waves on stage during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Justin Sullivan/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: (L-R) Malia Obama, Sasha Obama, and First lady Michelle Obama watch as Democratic presidential candidate, U.S. President Barack Obama speaks on stage during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Justin Sullivan/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic presidential candidate, U.S. President Barack Obama walks on stage to join First lady Michelle Obama during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Streeter Lecka/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic presidential candidate, U.S. President Barack Obama walks on stage to join First lady Michelle Obama during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Streeter Lecka/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic presidential candidate, U.S. President Barack Obama walks on stage during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Justin Sullivan/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: First lady Michelle Obama introduces Democratic presidential candidate, U.S. President Barack Obama during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Alex Wong/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: U.S. Sen. Dick Durbin (D-IL) speaks on stage during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Alex Wong/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic vice presidential candidate, U.S. Vice President Joe Biden waves with his wife Second lady Dr. Jill Biden after speaking on stage during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Chip Somodevilla/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic vice presidential candidate, U.S. Vice President Joe Biden hugs his wife Second lady Dr. Jill Biden after speaking during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Chip Somodevilla/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic vice presidential candidate, U.S. Vice President Joe Biden speaks on stage during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Alex Wong/Getty Images)

  • Obama Accepts Nomination On Final Day Of Democratic National Convention

    CHARLOTTE, NC - SEPTEMBER 06: Democratic vice presidential candidate, U.S. Vice President Joe Biden speaks on stage during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Alex Wong/Getty Images)

  • Vice President Joe Biden waves as he appears on stage to address the Democratic National Convention in Charlotte, N.C., on Thursday, Sept. 6, 2012. (AP Photo/David Goldman)