S&P 500, Nasdaq Composite and DJIA All Close Slightly Higher, Resuming Market's Recent Rebound

The $Nasdaq Composite Index (.IXIC.US)$, $S&P 500 Index (.SPX.US)$ and $Dow Jones Industrial Average (.DJI.US)$ had drifted lower Friday morning, but reversed gears and all ended the session about 0.2% on the upside.

-- $B. Riley Financial (RILY.US)$, which rebounded 16.1% on word that company co-founder and co-CEO Bryan Riley is planning to offer $7 a share to take the firm private. That's a 23.9% premium over RILY's $5.65 Friday close. The offer capped week that saw RILY fall 70% in recent days after the firm suspended its dividend and disclosed receiving regulatory subpoenas amid questions about its involvement with a questionable management-led buyout of a company called Franchise.

-- $Rocket Lab (RKLB.US)$, which gained 12.5% on news that the space-systems firm has shipped two Mars spacecraft to NASA. RKLB already had a 12.5% run-up on Thursday, apparently as part of a rally in the space-related sector sparked by a 50%+ rise for $AST SpaceMobile (ASTS.US)$ on word of plans for its first satellite launch.

-- $H&R Block (HRB.US)$, up 12.1% following well-received quarterly earnings.

-- $Planet Labs PBC (PL.US)$, which rallied 16.1% on the launch Friday of its first hyperspectral satellite into space. PL had already gained 4% Thursday, apparently as part of that session’s up move for many space-related stocks.

-- $Wheels Up Experience (UP.US)$, which pulled back 13% to after the private-jet firm enjoyed a 32.5% run-up over the past three days.

-- $Sidus Space (SIDU.US)$, down 20.3% following a 37.5% rally Thursday in apparent sympathy with ASTS's rise. ASTS itself gave back only 1% of Thursday's big run-up.