Cash flows from consolidated investing activities by security classification were as follows:
| | | | | | | | | | Nine months ended | | June 30, 2013 | | July 1, 2012 | Proceeds from investments sold, matured or repaid: | | | | Available-for-sale | $ | 7,052.1 |
| | $ | 4,208.6 |
| Held-to-maturity | — |
| | 75.7 |
| Trading (acquired for holding) | 91.8 |
| | 12.0 |
| Derivatives and other | 252.4 |
| | 90.0 |
| | $ | 7,396.3 |
| | $ | 4,386.3 |
| Cost of investments acquired: | | | | Available-for-sale | $ | (7,148.7 | ) | | $ | (3,697.0 | ) | Held-to-maturity | — |
| | (34.7 | ) | Trading (acquired for holding) | (10.2 | ) | | (22.9 | ) | Derivatives and other | (112.5 | ) | | (106.0 | ) | | $ | (7,271.4 | ) | | $ | (3,860.6 | ) |
Concentrations of Financial Instruments As of June 30, 2013, the Company’s most significant investment in one industry, excluding treasuries, was FGL’s investment securities in the banking industry with a fair value of $1,944.6, or 11.8%, of the invested assets portfolio. FGL’s holdings in this industry includes investments in 78 different issuers with the top ten investments accounting for 34.9% of the total holdings in this industry. As of June 30, 2013 and September 30, 2012 the Company had investments in 13 issuers that exceeded 10% of the Company's stockholders’ equity with a fair value of $1,629.2 and $1,625.9, or 10.0% and 9.8% of the invested assets portfolio, respectively. Additionally, FGL’s largest concentration in any single issuer as of June 30, 2013 and September 30, 2012 had a fair value of $156.9 and $152.9, or 1.0% and 0.7% of FGL's invested assets portfolio, respectively.
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