Economics.

NVIDIA became the first company to cross $5.5 trillion in market capitalization on May 13, 2026, having first crossed $5 trillion in October 2025. This figure moves every second the market is open and different data providers report different intraday peaks — treat this as an approximate, likely-already-superseded snapshot rather than a fixed record, and check a live tracker (e.g. companiesmarketcap.com) for the current figure.

NYSE Equities recorded a single-day volume of 7 billion shares traded at some point during 2025 — four of the five highest-volume days in NYSE history occurred that year, per ICE's own 2025 markets report. ICE's release did not disclose the exact calendar date. This is a share-count record, distinct from a dollar-value record; ICE separately reported a same-year closing-auction record of over $205 billion traded in a single day's close.

Leonardo da Vinci's Salvator Mundi sold for $450.3 million at Christie's New York on November 15, 2017 — still standing as the record as of 2026, with the current runner-up (Klimt's Portrait of Elisabeth Lederer, $236.4M, November 2025) less than half its price. The painting's attribution to Leonardo (versus workshop assistance) has long been disputed by some art historians, and its current owner and location have been undisclosed since the sale.

The Swiss National Bank set a policy rate of -0.75% on sight deposits from January 15, 2015 to September 2022 — the deepest negative rate among the European Central Bank (bottomed at -0.50%) and Bank of Japan (-0.10%). Denmark's Nationalbank ran a negative-rate regime over a longer span (2012-2022), but sources disagree on whether its trough matched or exceeded -0.75% depending on which specific rate is measured, so this record is scoped to the SNB's unambiguous figure.

The U.S. federal funds rate's monthly average effective value peaked at 19.10% in June 1981, during the Volcker-era Federal Reserve's campaign against double-digit inflation. The daily effective rate briefly touched even higher levels within that period.

Hungary's pengo peaked at a monthly inflation rate of 4.19x10^16% (41.9 quadrillion percent) in July 1946 — prices doubled roughly every 15 hours. This is the highest hyperinflation episode ever documented, exceeding both Zimbabwe (2008, ~7.96x10^10% peak monthly) and Weimar Germany (1923). It is a settled historical fact with no staleness risk.