Did some research on historical price action after a 20%+ drop (calculated with intraday high/lows, not closes) from ATH on S&P. Since I'm a simpleton, it makes sense for me to put lion's share of cash at risk when price comes back from a 20%+ drop to set a new ATH.
Simpleton logic: price hit high price it's never hit before after previously losing 1/5th+ of its value, therefore it gonna keep going up with minimal drawdown. All these are post 1950, with the first 20%+ drop from ATH after 1950 in '56. Currently max S&P drawdon in this price correction is 21.4%.
The drawdown is the max intraday drawdown from the prior ATH after a new ATH was set, and gain is the maximum price it ran until a new 20%+ decline began
- ATH: 49.64 --> 21.5% drop (07/56-10/57) --> nATH 09/58 --> max drawdown (DD) ~0pt (0%) / max gain (G) 23pt (46.3%) --> Reward:Risk R:R): 23:1 (for simplicities sake)
- ATH: 72.64 --> 29.3% drop (12/61-06/62) --> nATH 08/63 --> DD: 3.16pt (4.4%) / G: 22.08pt (30.4%) --> R:R: 7:1
- ATH: 94.72 --> 23.7% drop (02/66-10/66) --> nATH 04/67 --> DD: 7.99pt (8.4%) / G: 14.65pt (15.5%) --> R:R: 1.8:1
- ATH: 109.37 --> 37.3% drop (12/68-05/70) --> nATH 03/72 --> DD: 5.54pt (5.1%) / G: 12.37pt (11.3%) --> R:R: 2.2:1
- ATH: 121.74 --> 49.9% drop (01/73-09/74) --> nATH 07/80 --> DD: 4.29pt (3.5%) / G: 20.22pt (16.6%) --> R:R: 4.7:1
- ATH: 141.96 --> 28% drop (11/80-08/82) --> nATH 11/82 --> DD: 9.07pt (6.4%) / G: 195.93pt (138%) --> R:R: 21.6:1
- ATH: 337.89 --> 35.9% drop (08/87-10/87) --> nATH 07/89 --> DD: 18.06 pt (5.3%) / G: 31.79pt (9.4%) --> R:R: 1.8:1
- ATH: 367.31 --> 20.4% drop (07/90-10/90) --> nATH 02/91 --> DD: 10.36pt (2.8%) / G: 820.90pt (222.1%) --> R:R: 79.2:1
- ATH: 1190.58 --> 22.5% drop (07/98-10/98) --> nATH 11/98 --> DD: 53.69pt (4.51%) / G: 362.53pt (30.5%) --> R:R: 6.8:1
- ATH: 1553.11 --> 50.5% drop (03/00-10/02) --> nATH 07/07 --> DD: 886.32pt (57.1%) / G: 22.98pt (1.5%) --> R:R: .03:1
- ATH: 1576.09 --> 57.7% drop (10/07-02/09) --> nATH 04/13 --> DD: 40.06pt (2.5%) / G: 1363.77 (86.5%) --> R:R: 34:1
- ATH: 2939.86 --> 20.2% drop (10/18-12/18) --> nATH 04/19 --> DD: 211.05pt (7.2%) / G: 453.66pt (15.4%) --> R:R: 2.1:1
- ATH: 3993.52 --> 35.4% drop (02/20-03/20) --> nATH 08/20 --> DD: 184.07pt (5.4%) / G: 1425.1pt (42%) --> R:R: 7.7:1
- ATH: 4818.62 --> 27.5% drop (01/22-10/22) --> nATH 01/24 --> DD: 103.8pt (2.2%) / G: 1328.81pt (27.6%) --> R:R: 12.8:1
13/14 cases with favorable R:R. 9/14 with R:R of at least 4:1. 5/14 with R:R of at least 10:1. The one failure was of course the GFC after we just barely swept the ATH from before the Dot Com bust.
I think a lot of folks worry about missing the bottom and the rocket ship gains that come the weeks immediately following the bottom. However, if you're keen to pick bottoms you probably end up picking a bunch of spots that weren't actually bottoms, and either end up putting most/all your cash to work in disadvanteous spots and/or getting margin called.
IMO, dip buying and buying ATH breakouts (without 1/5th decline in price), which are really just two sides of the same coin, work great when we're in a bull market, but aren't viable strategies once price declines 20%+. Have to consider that in the last 60 years, nearly half that time price chopped around and really went nowhere ('65-82 & '99-13 & perhaps now till whenever lol).
If price breaks above ATH after a 20%+ decline, save for GFC, the max DD we've seen is 8.4%. That potential for failure can be mitigated by stopping yourself out on any nATH longs when and if S&P sells off 10% from the prevous ATH. Contra, there are more than a few cases of price dropping 20-25%, then rallying significantly (like now), then selling off 30-50% more.
Right now Mkt looks a lot like like it did in mid-Jan '19 or April '20 when it kept on rocketing up. It also looks a lot like it did in October '00/May '08 March '22, when there was minimal upside left and ~47/53/22%, respectively, further % declines. If we open up where futures are trading right now, all we will need is another ~9% of gains to get back to ATH on S&P. For me, that's when I plan to deploy most of my cash. Don't have any urge to add to anything at these prices. Happy to continue taking 4%+ a year on the cash in money market fund in brokerage account.
Happy investing and trading!