JOHANNESBURG, Nov 29 (Reuters) - Offshore investors sold a net 6.57 billion rand ($407.25 million) of South African stocks last week, data from the Johannesburg Stock Exchange showed on Monday. Settlement data on bonds showed net sales of 11.19 billion rand, while trading data showed net sales of 3.97 billion rand. STOCKS Week ended Week ended Year-to-date Year-to-date 26.11.2021 20.11.2020 2021 2020 Purchases (bln rand) 9.33 15.72 913.68 836.71 Sales (bln rand) 15.90 21.97 1,036.37 960.01 Net purchases (bln rand) -6.57 -6.25 -122.69 -123.30 BONDS (Settlement stats) Week ended Week ended Year-to-date Year-to-date 26.11.2021 20.11.2020 2021 2020 Purchases (bln rand) 59.27 56.38 2,821.64 3,158.25 Sales (bln rand) 70.46 59.88 2,817.60 3,188.21 Net purchases (bln rand) -11.19 -3.49 4.04 -29.96 BONDS (Trading stats) Week ended Week ended Year-to-date Year-to-date 26.11.2021 20.11.2020 2021 2020 Purchases (bln rand) 20.17 23.59 1,022.99 1,239.90 Sales (bln rand) 24.13 20.011 1,173.21 1,303.40 Net purchases (bln rand) -3.97 3.58 -150.22 -63.50 ($1 = 16.1326 rand)