It sounds like something contestants shout during Wheel of Fortune ("Big Money! Atta Money! At-the-Money!") or maybe a kind of specialized racetrack bet ("I'd like the number four horse in the second rate at the money"). But "at the money" actually means that a stock's price matches the strike price of the stock options that an investor has bought.
So if you have the right to buy a share at $50 and then the share actually is at $50 when you go to buy, the share is at the money. Example: Joe Shmoe has paid 3 bucks for the right to buy a share of KO (Coke) for $80. That option expires in a week and the stock is at $76 a share today. If the stock climbs to $80 a share (the bid), then it is said to be "at-the-money" or at the strike price. If it climbs above $80, then it's "in the money"; below $80, it's "out of the money" honey.
Note that KO could be $82.50 and the call option buyer has still lost money on the trade (she paid $3 for the call and KO ended up only $2.50 in the money so she lost half a buck).
Related or Semi-related Video
Finance: What Does "Away from the Market...3 Views
finance a la shmoop what does away from the market mean? limit orders that's what
this one's about you want to buy a hundred shares of amazork the finest [Person on computer looking at amazork]
seller of werewolf catching nets on the web but you don't want to pay more than
a grand a share for them and those shares are volatile, on days when there's
a full moon the stock shoots to 1,200 on days when the moon barely shows up the
stock often craters to right around a thousand so you put in your limit order
which is away from the market... Amazork is trading at $1,187 a share
this moment thanks to a half moon and you think it'll be two thousand dollars [Line increasing on graph of Amazork shark price]
a share in five years if what all those crazy astronomers are saying actually
holds water well but you want to be able to buy it at the right price you'll feel
like an idiot if you just pay 1,187 and then three months from now it's at 998
and you overpaid by 20-ish percent so you put in a limit order that is away [Man discussing limit orders]
from the market and note that away from the market can also work on a sell order
that's higher than market and you think about that for when the stock gets to
2000 so you wait and you wait preferably indoors and you know away from any open [Woman sitting by window and werewolf appears]
windows
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