Kangaroo market: ASX breaks three-day slump with 4pc rebound

Summary

• The ASX 200 has jumped by as much as 4 per cent to 5953.7 after three sessions of heavy losses. 
• Japan's stock market jumps nearly 5pc after central bank expands stimulus program. 
• Afterpay hits new highs of $56.78, making it a $15bn company. 
• Aussie dollar strengthens against major currencies, rises to US69.64¢.