Earnings season is running on full speed. There are many companies which have earnings surprises, up and down, and this is causing many of the shares to react in the after-hours trading session on Monday.

24/7 Wall St. has identified five of the largest percentage movers in the after-hours session. Basic earnings or news details have been provided, as has the nature and extent of each stock’s after-hours movement.

Amkor Technology, Inc. (NASDAQ: AMKR) reported earnings of $0.12 per share, 2-cents ahead of estimates. Revenue was light versus estimates, as was guidance. Still, the company said it expects that demand will strengthen in the second half of 2015 driven by the launch of flagship mobile devices with high Amkor content. Apparently investors did not care about the longer-term views. Amkor shares closed down 2.3% in regular trading and were down another 10% at $7.12 in the after-hours session.

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The Container Store Group Inc. (NYSE: TCS) was last seen down almost 24%, or over $5, in the after-hours session at $16.50 –and on close to 500,000 shares to boot. The retailer reported earnings of $0.24 per share, $0.07 worse than the $0.31 EPS consensus. Revenues of $224 million were about $10 million light, while comparable store sales were down 0.8%. Now the company sees a wider operating loss than expected and sees comparable sales down 3% to 4%.

GW Pharmaceuticals plc (NASDAQ: GWPH) saw its ADSs fall 4.7% in regular trading, and then the cannabinoid drug-maker was down almost 2% more at $113.25 in after-hours — after hitting an all-time high of $126.78 earlier on Monday. The company is raising capital, announcing the sale of 1.25 million ADSs in a proposed public offering.

Rent-A-Center, Inc. (NASDAQ: RCII) saw its shares up almost 2% in regular trading, but the after-hours gain after its earnings report was another 8.5% to $29.35. The company showed earnings of $0.52 per share versus $0.50 expected, but revenues rose almost 6% to $877.6 million — some $20 million better than expected.

Rudolph Technologies Inc. (NYSE: RTEC) was not acting like it was going to beat earnings, not with a 2.7% drop to $12.05 in regular trading. It turns out that they did beat earnings, and they beat estimates on revenues too: $0.17 in earnings per share on revenues of $52.6 million, versus estimates of $0.11 per share and $48.77 million in revenue. Shares of Rudolph Tech were up 4% at $12.53 in the after-hours session.

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