In the latest trading session, Siga Technologies Inc. (SIGA) closed at $5.74, marking a -0.35% move from the previous day. The stock's performance was behind the S&P 500's daily gain of 1.08%.

In the latest market close, Siga Technologies Inc. (SIGA) reached $5.48, with a -1.26% movement compared to the previous day. The stock's change was less than the S&P 500's daily gain of 0.55%.