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  2. Price–sales ratio - Wikipedia

    en.wikipedia.org/wiki/Price–sales_ratio

    Price–sales ratio, P/S ratio, or PSR, is a valuation metric for stocks.It is calculated by dividing the company's market capitalization by the revenue in the most recent year; or, equivalently, divide the per-share price by the per-share revenue.

  3. Extended-hours trading - Wikipedia

    en.wikipedia.org/wiki/Extended-hours_trading

    Extended-hours trading (or electronic trading hours, ETH) is stock trading that happens either before or after the trading day regular trading hours (RTH) of a stock exchange, i.e., pre-market trading or after-hours trading. [1] After-hours trading is the name for buying and selling of securities when the major markets are closed. [2] Since ...

  4. What Is After-Hours Trading and How Does It Work? - AOL

    www.aol.com/hours-trading-does-180000897.html

    Every weekday at 9:30 a.m. EST, a bell signals the opening of the New York Stock Exchange and the beginning of the trading session that runs until 4 p.m. EST.

  5. Air traffic control radar beacon system - Wikipedia

    en.wikipedia.org/wiki/Air_traffic_control_radar...

    An ATC ground station consists of two radar systems and their associated support components. The most prominent component is the PSR. It is also referred to as skin paint radar because it shows not synthetic or alpha-numeric target symbols, but bright (or colored) blips or areas on the radar screen produced by the RF energy reflections from the target's "skin."

  6. 24-hour stock trading: Here are the brokers with overnight ...

    www.aol.com/finance/24-hour-stock-trading...

    After-hours trading: 4 pm ET to 8 pm ET. Overnight trading: 8 pm ET to 4 am ET. You have a few choices when it comes to trading stocks and funds overnight, including the following brokers.

  7. What Is After-Hours Trading? How Do You Do It? - AOL

    www.aol.com/hours-trading-140018925.html

    After-hours trading happens outside the standard hours during which a stock exchange (such as the Nasdaq or New York Stock Exchange) is open. This trading can fall under post-market trading, which ...

  8. Airport surveillance radar - Wikipedia

    en.wikipedia.org/wiki/Airport_surveillance_radar

    The klystron tube transmitter operates in the S-band between 2.5 and 2.9 GHz in circular polarization with a peak power of 1.3 MW and a pulse duration of 1 μs and pulse repetition frequency between 325 and 1200 pps. It can be switched to a second reserve frequency if interference is encountered on the primary frequency.

  9. After-hours trading: What it is and how it works - AOL

    www.aol.com/finance/hours-trading-works...

    After-hours trading refers to the buying and selling of stocks outside of the standard trading hours of 9:30 a.m. to 4 p.m. Eastern Time (ET). This form of trading occurs on electronic ...