CORRECTED - FACTBOX-France accused of missing gains on bank investments

(Corrects 4th paragraph to show government's holdings in Societe Generale are 1.7 billion euros of subordinated debt securities and 1.7 billion euros of preference shares, not 3.4 billion euros of preference shares; Corrects paragraph 7 to say "subordinated debt securities" not "preference shares")

Oct 1 (Reuters) - France's Socialist head of the parliament finance committee, Didier Migaud, has blasted the centre-right government for missing out on a potential 700 million euros ($1 billion) in capital gains after lender BNP Paribas (BNPP.PA) said it would repay early 5.1 billion euros in government aid on Tuesday. [ID:nLT495591]

He said that if the government had bought ordinary shares in March of this year, instead of non-convertible preference shares, its stake would now be worth 5.8 billion euros.

Here are some facts about the French government's other bank investments and windfalls it may have missed out on:

* The French state owns 1.7 billion euros of subordinated debt securities and 1.7 billion euros' worth of preference shares in Societe Generale (SOGN.PA), which it bought in two tranches on Dec. 11, 2008 and May 28.

Societe Generale's ordinary shares are now trading at 54.55 euros, an increase of 37.1 percent since the closing price on May 28 and 40.3 percent since the closing price on Dec. 11.

The French government could have made a profit of 1.3 billion euros had it bought ordinary shares on those two dates.

* The state also bought 3 billion euros' worth of subordinated debt securities from Credit Agricole (CAGR.PA) on Dec. 11. The bank's ordinary shares were then trading at 9.61 euros, but have since risen 46.7 percent to 14.10 euros.

This could have meant a windfall of 4.4 billion euros.

* France also lent funds to the Banques Populaires and Caisse d'Epargne, the recently-merged parent companies of investment bank Natixis (CNAT.PA), and to Credit Mutuel.

Neither lender is listed on the stock market.

* France is a 26 percent shareholder in French-Belgian bank Dexia (DEXI.BR) via direct government investment, the Caisse des Depots et des Consignations and insurer CNP Assurances (CNPP.PA).

Dexia tapped France, Belgium, Luxembourg and existing shareholders for emergency funds on Sept. 30 2008 after a run on the bank's shares. (Reporting by Lionel Laurent; Editing by David Holmes) ($1=.6863 Euro)