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Even with perfect optics, what is the resolution limit (in radians) of the Hubble Space
Telescope when it is focusing light of wavelength 400 nm? The mirror diameter is 2.4 m.
Last Trade
The most recent transaction that occurred for a specific security on a trading platform.
Limit Order Book
A record of all the open buy and sell orders for a particular security at various prices.
Russell 2000 Index
An equity index measuring the performance of the 2,000 smallest companies in the Russell 3000 Index, commonly used as a benchmark for small-cap U.S. stocks.
S&P 500 Index
A stock market indicator in the United States comprising 500 major corporations listed on the NYSE or NASDAQ, based on their market capitalization.
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