commit 727135

2026-05-30 17:05:50 Viraj Alankar: -/-

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`finance/investing.md` ..
@@ 196,12 196,15 @@

	Suppose you have $100k and want to leverage to 1.5 into the S&P500. You can buy $50k of SPY or equivalent, and $50k of SSO. That would give you notional exposure of $150k.

-	Other examples:
+	The following formula can be used to figure out how much to invest in each based on your desired leverage:

-	* 1.25× exposure → 75% SPY, 25% SSO
-	* 1.50× exposure → 50% SPY, 50% SSO
-	* 1.75× exposure → 25% SPY, 75% SSO
-	* 2.00× exposure → 100% SSO
+	W = your capital
+	L = desired leverage (e.g. 1.5)
+	x = amount invested in SPY (1×)
+	y = amount invested in SSO (2×)
+
+	SPY = (2 - L)W
+	SSO = (L - 1)W

	### Margin loan