I was gonna say it's OK to by 2 or 5 or whatever shares of SPY as long as your commission structure is favorable like at IB. You'd be paying a $1 ticket to enter and exit which isn't bad at all.
another thing to consider is the ES vs YM spread. You can put it on for peanuts. Less than 1k for 1:1. If you are bullish, you buy the es and sell the ym. That gives you a micro long es position, due to the difference in value of the two contracts.
the other reason I like that spread is it gives you a lot of staying power, no real fear of black swan, just avoid the temptation of always averaging down. Those spreads can stay irrational longer than you can stay solvent. I think one time YM stayed above ES for a whole year. That one hurts. Right on the direction but wrong on the spread.
so it really doesn't matter to me if you buy puts, sell calls or spread futures, the idea is to take something which may be very volatile, and tame it down to something you are comfortable with. When I am really nervous I am so spread and so protected that no matter which way the market moves nobody but the broker can make money. I could accomplish the same thing at less cost by just getting flat, but then I wouldn't really know what is going on.
ES requires like 5k of margin at most places. If you can't afford that then you shouldn't be doing this. Be aware that you're controlling over 100k of notional.
Thanks for the reply. I have more than enough to start with and the margin requirements on ES are of know concern compared to account size. What I am trying to figure out is which is the best instrument to use as there are a lot of choices not just futures. Also if I am to trade my strategy to ES how do I transfer pricing from SPY to ES?
SDS has a horrible inverse correlation of the S&P, except if you're day trading ONLY. SSO is good in a raging bull market, as we've had for many years now. However, that 2x leveraged ETF will lose value very quickly when the market drops. Trading 500 shares of SPY is equivalent of the move in 1 lot of ES, so as others have said you could just modify the strategy with futures with a lot less capital outlay. If you have a Fidelity account, then you can trade IVV in lieu of SPY, and pay no commission.