There are folks who trade iron condors every month on SPY. Because it's an ETF and not an individual stock, its volatility is more muted and therefore lends itself more to sideways strategies.
It should be possible to come up with 1:1 risk:reward IC trades that win 60-70% of the time.
It should be possible to come up with 1:1 risk:reward IC trades that win 60-70% of the time.

