Have no fear, Quadruple Witching Day is here

Updated

Quadruple Witching Day is upon us, so don't be surprised if the market gets pretty hairy in the last hour of trading.

And don't fret, either.

No, Quadruple Witching isn't the tag line to the fourth sequel of The Blair Witch Project. Rather, it's a day on which contracts for four derivative products -- stock index futures, stock index options, stock options and single stock futures -- all expire at once.

It happens on the third Friday of every March, June, September and December, and to most retail investors, it's no big deal, seeing as they probably shouldn't be shooting craps with futures and options contracts, anyway. So if you have no skin in that game, don't let the market's crazy movements put you in a bad mood this weekend. It really has no implication for your 401(k), 529 plan, personal portfolio -- or even Monday's action.

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