Note: Apparently, you would pay $12.99 and $9.99 via ETrade and Ameritrade, respectively, for the same kind of transaction. I am not sure how the $2.95 flat-rate stocks fee is different from $9.95 per trade fee since I do not do stock trading.
No escalating per-contract-fees for equity options; OptionsHouse reserves the right to pass-through any regulatory fees and any third-party fees related to index and ETF options. Commission for spread trades applies to orders with the same underlying symbol, up to four legs per order. For stocks priced $2.00 or less that are not options eligible, add $0.01 per share for the entire order. See Rates and Fees for more details on trade commissions for mutual funds and other securities. Customers may trade up to 50,000 shares or 4,000 option contracts per trade; trades in excess of these parameters require multiple order tickets and will be billed as separate orders.