17. Trading assets

By carrying amount31.12.201331.12.2012
Debt securities467,931273,576
issued by the State Treasury, of which:395,202216,521
Treasury bonds PLN390,660216,521
Treasury bonds EUR4,542-
issued by local government bodies, municipal bonds PLN41,90726,673
issued by non-financial institution, corporate bonds PLN23,89215,064
issued by other financial institutions, of which:6,76213,947
bonds issued by WSE PLN6,62813,880
corporate bonds PLN13467
issued by banks, of which:1681,371
BGK bonds PLN1581,361
Shares in other entities - listed on stock exchanges10,7993,237
Investment certificates1,151713
Rights issues-40
Total479,881277,566
Debt securities by nominal value31.12.201331.12.2012
Treasury bonds PLN389,455213,650
municipal bonds PLN39,15825,678
corporate bonds PLN30,47033,157
Treasury bonds EUR4,174-
BGK bonds PLN1481,308
The average yield on debt securities issued by the State Treasury3.79%3.26%

Change in trading assets20132012
Balance at the beginning of the period277,5661,311,089
Currency translation differences(71)(47)
Increases378,331,420324,864,253
Decreases(378,129,976)(325,899,787)
Changes in fair value9422,058
Balance at the end of the period479,881277,566

As at 31 December 2013 and as at 31 December 2012 the Group did not have transferred financial assets, which are derecognised from the financial statements for which the Group would continue involvement in those assets.

Transferred trading assets, which are not derecognised from the statement of financial position

Financial assets which the Group does not derecognise from the financial statements include the assets pledged as collateral for liabilities due to sell-buy-back transactions (treasury bonds). The carrying amounts of transferred trading assets and related liabilities as at 31 December 2013
and 2012 were as follows:

Carrying amount31.12.201331.12.2012
Trading assets1,682,616-
Sell-buy-back liabilities1,684,506-
Net position(1,890)-

Initial Settlement Deposit of the National Depository for Securities (KDPW).

The Brokerage House of PKO Bank Polski SA holds bonds in the National Depository for Securities pledged as collateral for settlement of transactions with the Clearing House.

Carrying amount/fair value31.12.201331.12.2012
Value of the deposit7,5897,359
Nominal value of the pledge8,0008,000
Type of the pledgeTreasury
bonds
Treasury
bonds
Carrying amount of the pledged asset7,9907,744

As at 31 December 2013up to 1 month1 - 3 months3 months –1 year1 - 5 yearsover 5 yearsTotal
Debt securities
issued by the State Treasury50,0701,082141,700175,94726,403395,202
issued by local government bodies-20477,90133,93941,907
issued by non-financial institutions--2921,0962,76723,892
issued by other financial institutions-72-6,658326,762
issued by banks--11454-168
Total50,0701,174141,890211,65663,141467,931

As at 31 December 2012up to 1 month1 - 3 months3 months –1 year1 - 5 yearsover 5 yearsTotal
Debt securities
issued by the State Treasury10,5653724,234150,49150,859216,521
issued by local government bodies-989,05517,60126,673
issued by non-financial institutions-241,12913,911-15,064
issued by other financial institutions---13,947-13,947
issued by banks---1,371-1,371
Total10,5654055,371188,77568,460273,576