ROSG IPO's: N/A Key Research: Stifel assumes RTN (buy) & GD/LMT/NOC/LLL (holds), Cantor initiates ZMH/SYK (holds) Key Research: Piper downgrades VCLK & initiates TITN (ow), Canaccord initiates MM (buy), Jefferies downgrades PEG Key Research: DB upgrades AZO (buy), JPM downgrades DOW, UBS downgrades