Rennova Health Inc (RNVA)

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RNVA Trading Stocks After Hours: Basics and Platforms
During the regular trading day investors can buy or sell stocks on the New York Stock Exchange and other exchanges. They can also trade via digital markets called electronic communication networks or ECNs.

After hours and premarket trading takes place only through ECNs. Those trading stocks after hours typically do so between 4 p.m. and 8 p.m. ET. Times to engage in premarket trading depend on which platform you are using, but all premarket trading ends at 9:30 a.m. when the openign bell rings. Individual brokerages also have different rules for extended hours trading. An investor interested in extended hours trading should check a broker’s policies to see what is allowed.