No more 15-minute options, the tolerance is too low. Now I am doing 1-hour options, and the pace might slow down to 6 hours or even 24 hours. This trade made 9u from 25u, where 25u was the 10u I put in yesterday, essentially stable. I don't expect to make 50 cents to 100 cents, just aiming for about 30%, so I generally buy in advance with a cost of around 50 cents, and I start selling when it reaches about 64 cents. So I have always been puzzled why people do event contracts when the odds are so low. Indeed, there are many opportunities every 10 minutes, but the risk of loss is significant. Isn't doing it once an hour more appealing, especially with no minimum capital requirement? Doing it 10 times a day with a steady 20% each time would yield 6 times, meaning buying at 50 cents and selling at 60 cents in a volatile situation, excluding one-sided trends, is generally profitable. I have advised those who could be persuaded, but there are still some who won't listen, sigh.