Jack McPherson jmcph4

Why the USD nominal can diverge sharply from the AUD nominal

When --risk-free us is used, perf.py converts the portfolio's AUD cashflows to USD via daily AUD/USD spot (Yahoo AUDUSD=X) before applying the US Treasury deflator. The reported USD nominal is the XIRR of those FX-converted cashflows.

The USD nominal can look surprisingly high (or low) compared to the AUD nominal whenever AUD has moved materially against USD over the holding period. This is not a bug — it is the real USD return an offshore

https://www.abqjournal.com/news/retired-kirtland-commander-reported-missing-since-friday/2991867

https://www.researchgate.net/publication/361850311_Structural_deviations_drive_an_uncanny_valley_of_physical_places

https://worldmonitor.app/?lat=20.0000&lon=0.0000&zoom=1.00&view=global&timeRange=7d&layers=conflicts%2Cbases%2Chotspots%2Cnuclear%2Csanctions%2Cweather%2Ceconomic%2Cwaterways%2Coutages%2Cmilitary%2Cnatural

https://x.com/martkiro/status/2026327582627545548

https://x.com/sama/status/2023150230905159801

	module Book where

	import Control.Applicative (liftA2)

	maximumMaybe :: Ord a => [a] -> Maybe a
	maximumMaybe [] = Nothing
	maximumMaybe xs = Just (maximum xs)

	minimumMaybe :: Ord a => [a] -> Maybe a
	minimumMaybe [] = Nothing