Why this works
Lester's assassinations are scripted to crash or boost specific companies' stocks. Because the moves are predictable, you can buy low right before the hit and sell high right after — legally, inside the game, with no glitch or cheat involved. The catch is that returns scale with how much you invest, so it pays to wait until you're rich.
The strategy
- Complete the first assassination (The Hotel Assassination) when the story requires it.
- Save the remaining assassinations until after you finish the final heist, when all three characters have their biggest cash piles.
- Before each hit, invest all three characters' money in the stock the mission affects (the community has documented which company each assassination moves and on which exchange — BAWSAQ or LCN).
- Carry out the assassination, then wait for the stock to peak.
- Sell at the peak, then roll the profits into the next assassination's target.
A note on BAWSAQ vs. LCN
LCN stocks react to in-game events and recover fairly quickly, while BAWSAQ is influenced by other players online and can be less predictable. Most guides recommend focusing on the LCN-based plays for reliability, and checking prices in-game before committing.
Prefer online money?
The stock market is single-player only. In GTA Online, the best earners are heists and businesses — see the fastest legit GTA Online methods or the current working glitches.