Sell S&P 500 @ 1840- 2 wins, 1 loss/invalid at higher risk

Sell S&P 500 @ 1840 if it stays below & drops further, for 30 minutes expiration

Result: 2 wins, 1 loss/invalid at higher risk
Sell S&P 500 slightly lower than 1840 (slightly below 1839 as it couldn't go any higher) for it to expire @ 1836.60 at 1pm EST & 1836.45 at 2pm EST

Signal posted at 12:47 EST, S&P 500 stayed below 1839 for 2 hours but broke above 1839 & 1840 later, showing that it's not safe to trade anymore, especially near end of the day & week, when the market has increased volatility
Sell S&P 500 @ 1840 at higher risk later would result in a loss, as S&P 500 did not stay below & drop further
S&P 500 did not follow its previous pattern anymore, when it dropped @ 1840 for the past few days