June 2010 NPD Sales Data

• US Hardware in June 2010

  Title	Actual units	Expected units	% From Expected
  Nintendo DS	510,700	439,100	+16.31%
  Xbox 360	451,700	397,500	+13.64%
  Nintendo Wii	422,500	383,800	10.08%
  PLAYSTATION 3	304,800	202,100	+50.82%
  PlayStation Portable	121,000	63,400	+90.85%
  Total Hardware Units	1,810,700	1,485,900	+21.86%

• US Software in June 2010

  Rank	Title	Actual units	Expected units	% From Expected
  1	Red Dead Redemption (Xbox 360)	582,900	409,200	+42.45%
  2	Super Mario Galaxy (Wii)	548,400	566,200	-3.14%
  3	Red Dead Redemption (PS3)	380,300	--	--
  4	New Super Mario Bros (Wii)	200,900	216,400	-7.16%
  5	Just Dance (Wii)	174,800	--	--
  6	Wii Fit Plus w/ Balance Board (Wii)	--	--	--
  7	Toy Story 3 (DS)	--	--	--
  8	UFC 2010: Undisputed (Xbox 360)	--	--	--
  9	LEGO Harry Potter: Years 1-4 (Wii)	--	--	--
  10	UFC 2010: Undisputed (PS3)	--	--	--
  	Total Software Sales	$531.3M	$569.1M	-6.64%

The market also tracked the sales of Metal Gear Solid: Peace Walker (PSP) which did not make the top 10. These futures will be rolled back.

Where do the expected sales numbers come from?

The simExchange is the video game stock market. Gamers and developers sign up on the simExchange for a free trading account. Using fantasy money, players buy virtual stocks in video games they believe are under-predicting sales and short sell stocks they believe are over-predicting sales. This concept is widely known as "the Wisdom of the Crowd" and this system is known as a "prediction market." Sign up and play today.

About the predictions

Predictions on the simExchange should become more accurate over time as (1) the diversity of the pool of traders increases and as (2) more accurate players are rewarded with more virtual currency for their accuracy (thereby enabling them to form more predictions) and less accurate players lose virtual currency (thereby discounting their ability to form more predictions).