I've said it many, many times: every day there is an opportunity to make big returns in the market on a percentage basis. This is the lure of investing in stocks generally, and in small caps specifically. Buy the right stock and you might make 20%, 50% or 100% in just a couple of days. I'll gloss over the reality that this is extremely hard to do on a repeat basis and instead go straight to the results from yesterday's trading session. These are the stocks that made some people extremely happy on Monday - the top performing small caps in the Russell 2000 and S&P 600 Small Cap Indices:
| Ticker | Company Name | Closing Price | %Change (1 Day) |
| NYSE:PRM | PRIMEDIA | $7.02 | 60.3% |
| Nasdaq:VITA | Orthovita | $3.83 | 40.3% |
| Nasdaq:ENOC | EnerNOC | $20.42 | 19.8% |
| Nasdaq:DVOX | Dynavox | $8.99 | 13.7% |
| Nasdaq:SPMD | SuperMedia | $4.28 | 11.5% |
PRIMEDIA (NYSE: PRM): The consumer directories publisher's stock rallied 60.3% on news that private equity group TPG Capital would take it over for $7.10 per share. Orthovita (Nasdaq: VITA): The $300 million market cap company, which makes products to fuse human bones, and other biosurgery products, soared 40.3% on news that Stryker Corp. (NYSE: SYK) struck a deal to buy it for around $316 million. EnerNOC (Nasdaq: ENOC): Credit Suisse upgraded the stock with a $23 price target. The company provides energy efficiency services. Read more at Forbes. Dynavox (Nasdaq: DVOX): The company makes speech and language related software. Shares popped 13.7% when it announced earnings per share of $0.07, a penny above the consensus analyst estimate.
SuperMedia (Nasdaq: SPMD): The media advertising company publishes the Yellow Pages Directories. Its stock jumped 11.5% on what I interpret as spillover from traders bidding up publishing stock PRIMEDIA. The stock is still languishing - it hit a 52-week low on May 13th at $3.31.