I think I made an important discovery with calendar spread trading: https://www.elitetrader.com/et/threads/calendar-secrets.369662/ This posting with an example data set is so far the most interesting finding in the above thread. Another interesting research posting by me with a table of combinations...: https://www.elitetrader.com/et/threads/constructs-with-more-than-3-legs.369486/#post-5676436 Another interesting thread of mine about some important option terminology (nomenclature): https://www.elitetrader.com/et/threads/option-nomenclature.369642/ As my current research is about options spreads, this wiki page is good: https://en.wikipedia.org/wiki/Options_spread
I could be interested in a Put Seller's Journal, but it's kind of hard to find the put selling in this thread.
My very first 2-leg spread trade (a vertical bull put spread, ie. LP.K < SP.K) was very succesful: I earned the credit fully (PnL=+30.90%), but then was wrongly thinking that I would get assigned (since I won! ). Of course an assigment means the other side makes profit (and this side a loss, both can also be partial). But since I took the full credit then in fact no assignment was to expect. In technical terms, both the ShortPut as well the LongPut were OTM (ie. expired worthless), therefore no assignment, which of course always is a good thing for a short seller. Still, the thread where this case was discussed and solved/cleared was initially interesting, but then unfortunately became unpleasant... :-( https://www.elitetrader.com/et/thre...on-was-expecting-the-underlying-stock.369718/ In later postings there I also explained a little bit my method of finding such possibly lucrative spread trades.
In this posting I've posted the results of my research on calendar spreads: https://www.elitetrader.com/et/threads/calendar-secrets.369662/page-11#post-5680746 In this posting I've explained how I handle the daily market data for decision making: https://www.elitetrader.com/et/threads/huge-cboe-options-data-price-hike.366264/page-3#post-5680901
In this posting I've explained why IV does not matter at expiration: https://www.elitetrader.com/et/threads/the-iv-risk-with-short-strangles.369874/#post-5683322 And another example of mine about how I analyze 2-leg Put vertical spreads and calendar spreads: https://www.elitetrader.com/et/threads/short-put-is-deep-itm-advice.369595/page-9#post-5682421 In that posting the percent signs (%) are missing in the values in parentheses (x%) , but one one can just imagine it...
Here I explained how to achieve being fully invested by using a wise diversification method: https://www.elitetrader.com/et/thre...ur-monthly-returns.369890/page-5#post-5683665
That sounds like folly. It doesn't hurt to have some reserve capital and why diversify into something that is less than the best?
Since there are so many positions, then one can anytime optimize it: if there is a new better trade candidate then close the current worst one or two and open this new better one...