The general consensus among traders on StockTwits was that Cook looked like a capable leader compared with the elected officials doing the questioning.
Cook even managed to plug Apple products.
Once one of the most sought after investments on Wall Street, Apple has struggled with concerns about the company's ability to develop revolutionary new products without its visionary leader, Steve Jobs, who died in 2011.
Cook, who was chief operating officer before taking over as CEO, has been praised for his technical skill. But many investors have questioned his leadership as Apple's stock price has plunged.
After hitting an all time high above $700 last September, Apple's stock has dropped more than 30%.
The stock has regained some ground in recent weeks as bargain hunters still see Apple as a good long-term bet. Apple also announced plans to return $100 billion to investors over the next few years by repurchasing stock and paying dividends.
While Cook came out looking like a winner, Congress definitely didn't gain any new fans on Wall Street. Of course, traders are typically not big fans of the legislative branch.
When 21-year old Tom Pszeniczny decided to make his foray into investing, he figured Apple was a pretty safe bet.
In the days leading up to the iPhone 5 launch event last September, the Drexel University student bought six shares of the iPad and iPhone maker for $665 a piece.
While Pszeniczny wasn't looking to make a quick buck, the following week seemed promising. On the day the iPhone 5 went on sale, MOREHibah Yousuf - Apr 22, 2013 8:03 AM ET
Move over Bitcoins and gold, Apple (AAPL) is the latest investment to succumb to panic selling.
Shares of Apple plunged as much as 6% Wednesday afternoon and hit a new 52-week low of $398.11 in the process. Shares recovered a bit as the day wore on and closed just under the $403 mark. But Apple's stock is now down almost 25% this year and is more than 40% below the all-time MOREPaul R. La Monica - Apr 17, 2013 4:32 PM ET
The opinions expressed in this commentary are solely those of Paul R. La Monica. Other than Time Warner, the parent of CNNMoney, Abbott Laboratories and AbbVie, La Monica does not own positions in any individual stocks.
In like a lion and out like a lamb may apply to the weather in March, but not to Apple's stock.
Apple (AAPL) limped its way into the start of the month. Shares hit a 52-week MOREPaul R. La Monica - Mar 19, 2013 11:57 AM ET
Activist investor David Einhorn publicly called for Apple (AAPL) to give some of its $137 billion cash hoard to back to shareholders in the form of preferred stock.
Einhorn said in a press release Thursday that he has held meetings with Apple executives explaining how they could unlock "several hundred billions of dollars" by distributing a perpetual preferred stock. Apple, he said, rejected the proposal in September 2012.
"Like many other shareholders, Greenlight is dissatisfied with Apple's MOREMaureen Farrell - Feb 7, 2013 4:00 PM ET
Microsoft (MSFT) reports earnings after the bell and investors are hoping the tech giant hasn't overpromised.
Shares were up about 1% Thursday afternoon. The stock has had a rough year, what with flagging Windows sales and all, but Microsoft is hoping to turn things around. And this may be its time to shine.
Windows sales have slowed for four straight quarters (year over year), but the advent of MORECatherine Tymkiw - Jan 24, 2013 2:33 PM ET
Not too long ago, analysts were predicting that Apple's stock would top $1,000. Now that Apple's stock has dropped more than 30% since last September, $500 is Apple's new proving ground.
Apple's stock dipped below $500 on Tuesday on concerns that demand for the iPhone 5 might be less than expected. But Apple's stock once again crossed the $500 barrier on Wednesday, soaring by nearly 4.5%.
There was no news from MOREMaureen Farrell - Jan 16, 2013 2:50 PM ET
Just when you thought it was safe to wade back into Apple (AAPL) stock again ... boom! You're attacked by bears!
Shares of Apple fell more than 6% Wednesday, pushing the stock back into official bear market territory. Apple is now down nearly 24% from its all-time high. Trading at just below $540, shares have pulled back sharply in the past two days. As recently as Monday, it looked like the MOREPaul R. La Monica - Dec 5, 2012 4:07 PM ET
The opinions expressed in this commentary are solely those of Paul R. La Monica. Other than Time Warner, the parent of CNNMoney, and Abbott Laboratories, La Monica does not own positions in any individual stocks.
Apple (AAPL) shareholders finally have something to give thanks for as we get closer to Turkey Day. The stock surged more than 7% on Monday.
So is the worst is finally over for Apple, following a rough MOREPaul R. La Monica - Nov 20, 2012 1:07 PM ET
Apple (AAPL) is officially no longer the market's darling.
Apple's stock dropped more than 3% Wednesday and is now in bear market territory. Shares are 20% below their all-time-high of $705 hit in mid-September.
The recent pullback is a sharp turnaround from earlier this year, when Apple's stock was on a seemingly endless flight higher. At its peak, Apple's stock was up nearly 75% for the year. Now shares are up MOREMaureen Farrell - Nov 7, 2012 2:42 PM ET
Not a member yet?Sign up now for a free account
|Doomsday investors betting on market crash|
|Why Waze is a hot takeover target|
|Exclusive: Better Place to file for bankruptcy|
|Ackman wins, P&G dumps CEO|