Sell S&P 500 @ 1780- invalid

Sell S&P 500 @ 1780 if it stays below & drops further, for 30 minutes expiration

New resistance @ 1780, S&P 500 dropped from 1780, avoid buying S&P Futures @ 1770 if it doesn't stay above & go higher

Result: invalid
S&P 500 only dropped from 1780 once & broke above 1780 later
Signal is invalid as it didn't stay below & drop further anymore