Earnings season is in full swing, and 24/7 Wall St. has tracked many big movers in the after-hours trading session. All these were movers based on earnings. Some have links to more detailed reports, and some are simply short summaries. Included in most of these reports are the closing price and change on the day, along with an after-hours trading reaction, view of after-hours volume (from 4:50 p.m. to 5:05 p.m.), and trading data like the 52-week range and some added color.

Here are 10 companies with stocks on the move big-time after earnings. Just for the record, not all of them are upside big movers.

Acacia Research Corp. (NASDAQ: ACTG) was getting slaughtered in the after-hours trading session. The company reported that revenues were $12,994,000, as compared to $37,192,000 in the similar prior-year quarter. Its non-GAAP net loss was $11,458,000, or -$0.23 per diluted share, as compared to non-GAAP net income of $5,050,000, or $0.10 per diluted share. While this was only on about 20,000 shares after the closing bell, the reality is that a drop of more than 23% to $6.75, particularly versus a 52-week range of $7.88 to $19.93, is ugly no matter how you cut it.

Align Technology Inc. (NASDAQ: ALGN) reported strong earnings, despite having a weak performance, in Thursday’s regular trading session. With its EPS on the high-end of guidance and its strongest year-over-year growth in North America, Align definitely knocked this one out of the park. In the after-hours, shares were trading up nearly 7% at $64.84, just below the 52-week high.

Alphabet Inc. (NASDAQ: GOOGL), previously known as Google, was not the only earnings winner on Thursday, but it beat earnings and announced a $5+ billion stock buyback. The earnings beat definitely pushed the stock up, but what really caused shares to soar in the after-hours was YouTube and programmatic advertising. Shares were last seen up over 8% at $740.32, reminiscent of the previous earnings report and hitting a new all-time high.

Amazon.com Inc. (NASDAQ: AMZN) surprised investors and analysts alike when it posted a “surprise profit” with its earnings. Normally, Amazon is known for losing money but with an EPS of $0.17, this e-commerce giant is up over 10% in the after-hours at $620.62, pushing a new all-time high.

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Fortinet Inc. (NASDAQ: FTNT) was up 3% ahead of earnings, but then the sell-off was down 12% at $38.00 after the close with more than 200,000 shares since the close. Fortinet’s 52-week range is $25.00 to $50.31. Fortinet said that billings of $299.6 million were up 41%, while revenue of $260.1 million was up 35%. Total deferred revenue was $706.9 million as of September 30, compared to $657.6 million as of June 30.

Microsoft Corp. (NASDAQ: MSFT) posted a real beat on earnings but guidance was not shown, so we warned that it should be considered incomplete business. Many positives were seen here, particularly from the cloud revenues. Shares were last seen up 6.7% at $51.25 for a new 52-week high. That was on close to 3 million shares in about 45 minutes of after-hours trading.

Pandora Media Inc. (NYSE: P) was down sharply, with an even stronger than normal post-earnings reaction, with a drop of more than 18% to $15.59 after the close. That reverses many of the hopes for a recovery here. The company reported a net loss and its revenues were shy of expectations. Pandora has a 52-week range of $13.30 to $23.60 and its stock was mysteriously down seven cents at $19.19 in regular trading. That is on a day when the market was up massively.

Skechers USA Inc. (NYSE: SKX) just started selling foot fungus by the looks of its weaker-than-expected quarterly sales. Net income rose to $0.43 per share and revenue rose to $856.2 million from $674.3 million, with Thomson Reuters estimates at $0.55 per share and $876 million. Skechers shares were down almost 27% at $33.80 on more than 1.5 million shares after the closing bell.

Stratasys Ltd. (NASDAQ: SSYS) just brings more pain to the 3D printing sector with guidance that just isn’t up to snuff. It’s like deja vu all over again. Stratasys shares fell 22% to $24.00 in the after-hours session, and that was on over 100,000 shares, even after the halt. This drop was after closing up more than 5% at $30.87, and the 52-week range here is $24.82 to $125.00.

3D Systems Corp. (NYSE: DDD) probably hates being so aggressively positive in the past, considering its fall from grace, but a drop of 7% to $11.40 in the after-hours is solely tied to Stratasys guidance, which knocked even more out of that 3D printing leader. 3D Systems closed up just 1.4% at $12.26 and has a 52-week trading range of $10.67 to $39.15.

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