Why markets move the way they do — and when they don't.https://mnllab.com/https://mnllab.com/notes/why-do-bond-prices-fall-when-yields-rise/https://mnllab.com/notes/why-do-bond-prices-fall-when-yields-rise/Higher yields usually mean lower fixed-rate bond prices, but the shortcut can fail when the yield or cash flows being compared are different.Sun, 20 Sep 2026 09:04:00 GMTFinance notesRyan Kimhttps://mnllab.com/glossary/https://mnllab.com/glossary/A crack spread is the price difference between a barrel of crude oil and the refined products — like gasoline or diesel — made from it. If a refinery buys crude oil for $80 and sells the resulting fuels for $110, the crack spread is $30. This margin shows how profitable it is for refineries to turn raw oil into usable fuel.Sun, 20 Sep 2026 00:00:00 GMTGlossaryRyan Kimhttps://mnllab.com/brief/https://mnllab.com/brief/Gold rose 1.2% to $4,390.11 an ounce on September 18, reaching a one-week high. Reuters quoted EverBank's Chris Gaffney saying traders who had bet on a post-Fed decline were rapidly unwinding those positions as oil prices eased.Sun, 20 Sep 2026 00:00:00 GMTDaily briefRyan Kimhttps://mnllab.com/glossary/https://mnllab.com/glossary/Short covering happens when traders who bet on a price falling buy the asset back to close that bet. If many traders do this at once, their buying can push the price higher.Sun, 20 Sep 2026 00:00:00 GMTGlossaryRyan Kimhttps://mnllab.com/notes/why-gold-rises-when-dollar-falls/https://mnllab.com/notes/why-gold-rises-when-dollar-falls/Gold is quoted in dollars, so a weaker dollar mechanically lifts the gold price — but the link is a tendency, not a rule, and it breaks in predictable ways.Sun, 20 Sep 2026 00:00:00 GMTFinance notesRyan Kim