** Shares of retail trading platform Robinhood HOOD.O down 13% to $38.67 on Mon amid broader retreat in equities

** Nasdaq .IXIC falls nearly 4% on the session to six-mth low as economic growth concerns mount .N

** Late Fri, HOOD agreed to pay $29.75 mln to end several Financial Industry Regulatory Authority (FINRA) probes into its supervision and compliance practices

** Menlo Park, California-based co did not admit or deny wrongdoing, saying it has remediated the problems, which date back to 2014

** Shares of HOOD also tend to track moves in bitcoin BTC=, which is off ~3% on Mon around the $81,500 mark

** Stock hit a 1-yr intraday high of $66.91 on Feb 13 after co reported eight-fold jump in transaction-based rev from crypto trading for Q4

** With move on the session, stock up nearly 130% over the past year

** 12 of 19 analysts covering HOOD rate stock "strong buy" or "buy", rest "hold"; median PT of $74.77 up from $54 a month ago and from $49 on Dec 10, per LSEG data

(Lance Tupper is a Reuters market analyst. The views expressed are his own)

((lance.tupper@tr.com 1-646-279-6380))