AMEX:SPY   SPDR S&P 500 ETF TRUST
4
Mind you, these are monthlies and we have no idea how long ago these calls were put on. Also, I didn't look at OI last night - so not sure what the change was today. I did find looking at OI was useful last week, it was very bearish indeed, but weeklies are a different animal. Just for giggles.

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