Measuring U.S. Cross-Border Securities Flows: Out With the Old, In with the New, Accessible Data

Figure 1: Estimated and Measured Long-term Net Cross-Border Securities Transactions

1. Treasuries: Official
Billions of dollars

Date SLT transactions Estimated transactions
2023-02 47 49
2023-03 5 4
2023-04 35 32
2023-05 27 28
2023-06 26 31
2023-07 -23 -16
2023-08 -5 -7
2023-09 16 14
2023-10 -20 -20
2023-11 -32 -49
2023-12 24 27
2024-01 -3 12
2024-02 17 -4
2024-03 32 38
2024-04 40 41
2024-05 -11 -15
2024-06 -7 -2
2024-07 -33 -44
2024-08 -30 -37
2024-09 -5 -3
2024-10 15 21
2024-11 -1 0
2024-12 -42 -39
2025-01 -24 -46
2025-02 -20 -22
2025-03 41 40
2025-04 6 -14
2025-05 26 29
2025-06 -9 -9
2025-07 17 15

2. Treasuries: Private
Billions of dollars

Date SLT transactions Estimated transactions
2023-02 4 0
2023-03 90 71
2023-04 80 34
2023-05 35 13
2023-06 52 68
2023-07 18 33
2023-08 9 21
2023-09 -7 -41
2023-10 40 70
2023-11 137 105
2023-12 -9 21
2024-01 56 48
2024-02 75 100
2024-03 17 48
2024-04 46 31
2024-05 64 53
2024-06 7 43
2024-07 92 49
2024-08 50 83
2024-09 67 84
2024-10 74 51
2024-11 -34 -6
2024-12 -5 -15
2025-01 11 -3
2025-02 126 136
2025-03 82 91
2025-04 -47 -44
2025-05 122 82
2025-06 4 20
2025-07 41 61

3. Treasuries: Total
Billions of dollars

Date SLT transactions Estimated transactions
2023-02 51 49
2023-03 95 75
2023-04 116 66
2023-05 62 41
2023-06 78 99
2023-07 -5 18
2023-08 3 13
2023-09 8 -27
2023-10 20 50
2023-11 105 55
2023-12 14 48
2024-01 53 61
2024-02 92 95
2024-03 48 86
2024-04 85 72
2024-05 53 38
2024-06 0 41
2024-07 58 5
2024-08 20 46
2024-09 62 82
2024-10 89 71
2024-11 -35 -5
2024-12 -47 -54
2025-01 -13 -49
2025-02 106 115
2025-03 123 132
2025-04 -41 -57
2025-05 147 111
2025-06 -5 11
2025-07 58 76

4. Agencies: Official
Billions of dollars

Date SLT transactions Estimated transactions
2023-02 3 1
2023-03 14 12
2023-04 1 1
2023-05 6 3
2023-06 12 10
2023-07 2 -1
2023-08 1 -1
2023-09 0 -1
2023-10 6 2
2023-11 -5 -6
2023-12 -1 -2
2024-01 0 -2
2024-02 -5 -9
2024-03 -7 -10
2024-04 -6 -9
2024-05 -4 -7
2024-06 -4 -4
2024-07 -5 -8
2024-08 -6 -7
2024-09 -3 -5
2024-10 -1 -5
2024-11 -1 -3
2024-12 -2 -5
2025-01 -5 -7
2025-02 -8 -9
2025-03 -7 -9
2025-04 -6 -9
2025-05 -8 -10
2025-06 -3 -4
2025-07 -5 -6

5. Agencies: Private
Billions of dollars

Date SLT transactions Estimated transactions
2023-02 13 15
2023-03 14 22
2023-04 19 14
2023-05 6 6
2023-06 17 0
2023-07 13 16
2023-08 17 24
2023-09 25 37
2023-10 5 7
2023-11 25 15
2023-12 11 -10
2024-01 12 11
2024-02 10 21
2024-03 17 -8
2024-04 -2 7
2024-05 -5 -6
2024-06 12 62
2024-07 7 -2
2024-08 16 2
2024-09 23 16
2024-10 22 21
2024-11 -1 -9
2024-12 16 22
2025-01 5 6
2025-02 7 -1
2025-03 -3 0
2025-04 -4 -13
2025-05 32 25
2025-06 2 -4
2025-07 14 18

6. Agencies: Total
Billions of dollars

Date SLT transactions Estimated transactions
2023-02 16 16
2023-03 28 34
2023-04 20 15
2023-05 12 9
2023-06 30 9
2023-07 14 15
2023-08 18 23
2023-09 25 36
2023-10 11 9
2023-11 21 9
2023-12 10 -12
2024-01 12 9
2024-02 5 12
2024-03 10 -18
2024-04 -9 -3
2024-05 -9 -12
2024-06 8 58
2024-07 2 -11
2024-08 11 -5
2024-09 20 11
2024-10 21 17
2024-11 -2 -13
2024-12 14 17
2025-01 0 -1
2025-02 -1 -10
2025-03 -11 -9
2025-04 -10 -21
2025-05 24 15
2025-06 -1 -8
2025-07 10 12

7. U.S. Corporate Bonds
Billions of dollars

Date SLT transactions Estimated transactions
2023-02 39 49
2023-03 37 10
2023-04 9 15
2023-05 44 74
2023-06 28 10
2023-07 14 23
2023-08 53 60
2023-09 16 19
2023-10 3 29
2023-11 34 4
2023-12 14 97
2024-01 17 31
2024-02 45 84
2024-03 43 43
2024-04 18 15
2024-05 42 23
2024-06 -14 -21
2024-07 35 23
2024-08 16 20
2024-09 39 44
2024-10 42 69
2024-11 -9 -17
2024-12 29 33
2025-01 23 21
2025-02 15 -15
2025-03 60 37
2025-04 19 29
2025-05 39 45
2025-06 35 18
2025-07 27 45

8. U.S. Equities
Billions of dollars

Date SLT transactions Estimated transactions
2023-02 30 70
2023-03 27 -96
2023-04 -41 -84
2023-05 -34 -1
2023-06 123 -61
2023-07 27 -27
2023-08 -1 75
2023-09 -27 93
2023-10 -81 -32
2023-11 -2 -218
2023-12 -4 146
2024-01 -121 -78
2024-02 -23 -43
2024-03 44 36
2024-04 -22 113
2024-05 -7 -145
2024-06 68 4
2024-07 23 -15
2024-08 57 2
2024-09 125 109
2024-10 -33 83
2024-11 140 -14
2024-12 63 151
2025-01 -12 -49
2025-02 24 9
2025-03 12 222
2025-04 -15 16
2025-05 116 -36
2025-06 163 65
2025-07 -16 -72

9. Foreign Govt. Bonds
Billions of dollars

Date SLT transactions Estimated transactions
2023-02 2 11
2023-03 6 -2
2023-04 4 7
2023-05 7 -1
2023-06 1 5
2023-07 4 5
2023-08 2 0
2023-09 -10 -8
2023-10 1 0
2023-11 5 -4
2023-12 -5 -31
2024-01 5 2
2024-02 13 11
2024-03 10 4
2024-04 6 3
2024-05 13 17
2024-06 6 -3
2024-07 4 7
2024-08 -3 -10
2024-09 0 0
2024-10 7 4
2024-11 11 25
2024-12 3 -16
2025-01 23 29
2025-02 13 7
2025-03 4 3
2025-04 4 10
2025-05 -5 -8
2025-06 12 12
2025-07 7 5

10. Foreign Corp. Bonds
Billions of dollars

Date SLT transactions Estimated transactions
2023-02 19 31
2023-03 1 -22
2023-04 -14 -13
2023-05 24 23
2023-06 12 8
2023-07 1 12
2023-08 -2 -1
2023-09 11 19
2023-10 8 4
2023-11 5 -31
2023-12 14 -102
2024-01 20 5
2024-02 28 40
2024-03 25 0
2024-04 25 28
2024-05 27 6
2024-06 19 8
2024-07 -1 -29
2024-08 -5 -26
2024-09 20 -2
2024-10 -11 -2
2024-11 14 -3
2024-12 21 34
2025-01 15 6
2025-02 8 0
2025-03 13 16
2025-04 -16 -51
2025-05 13 17
2025-06 17 3
2025-07 1 17

11. Foreign Equities
Billions of dollars

Date SLT transactions Estimated transactions
2023-02 -15 -16
2023-03 -39 -64
2023-04 -1 -95
2023-05 5 113
2023-06 36 -21
2023-07 33 10
2023-08 -3 105
2023-09 -1 93
2023-10 -28 13
2023-11 13 -91
2023-12 -14 -236
2024-01 -5 -57
2024-02 26 71
2024-03 19 25
2024-04 -2 -9
2024-05 41 -16
2024-06 15 42
2024-07 12 -41
2024-08 15 -74
2024-09 16 16
2024-10 3 206
2024-11 20 93
2024-12 -13 -44
2025-01 3 0
2025-02 17 -146
2025-03 5 56
2025-04 -30 -151
2025-05 51 15
2025-06 12 13
2025-07 22 105

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Figure 2: Estimated and Measured Valuation Change for Long-term Net Cross-Border Securities Transactions

1. Treasuries
Billions of dollars

Date SLT valuation change Estimated valuation change
2023-02 -108 -124
2023-03 123 142
2023-04 19 17
2023-05 -68 -70
2023-06 -46 -56
2023-07 -18 -21
2023-08 -28 -27
2023-09 -143 -109
2023-10 -51 -57
2023-11 161 155
2023-12 139 157
2024-01 5 -19
2024-02 -62 -84
2024-03 40 21
2024-04 -112 -132
2024-05 51 66
2024-06 81 43
2024-07 93 112
2024-08 75 65
2024-09 54 60
2024-10 -114 -151
2024-11 44 26
2024-12 -96 -88
2025-01 6 16
2025-02 111 102
2025-03 -2 3
2025-04 22 33
2025-05 -80 -77
2025-06 54 58
2025-07 -52 -42

2. Agencies
Billions of dollars

Date SLT valuation change Estimated valuation change
2023-02 -31 -35
2023-03 14 19
2023-04 0 2
2023-05 -14 -13
2023-06 -10 -10
2023-07 -8 -5
2023-08 -15 -14
2023-09 -34 -44
2023-10 -28 -30
2023-11 44 58
2023-12 33 50
2024-01 -9 -10
2024-02 -18 -26
2024-03 3 9
2024-04 -34 -44
2024-05 11 20
2024-06 9 10
2024-07 20 29
2024-08 8 16
2024-09 4 11
2024-10 -38 -43
2024-11 4 13
2024-12 -25 -27
2025-01 3 2
2025-02 20 29
2025-03 -3 -5
2025-04 -8 -1
2025-05 -27 -17
2025-06 20 18
2025-07 -20 -11

3. U.S. Corporate Bonds
Billions of dollars

Date SLT valuation change Estimated valuation change
2023-02 -112 -126
2023-03 65 90
2023-04 26 26
2023-05 -54 -82
2023-06 12 21
2023-07 20 10
2023-08 -38 -46
2023-09 -98 -117
2023-10 -50 -76
2023-11 165 205
2023-12 134 148
2024-01 -12 -31
2024-02 -33 -68
2024-03 38 33
2024-04 -105 -114
2024-05 50 65
2024-06 15 0
2024-07 71 84
2024-08 76 63
2024-09 63 62
2024-10 -99 -129
2024-11 8 17
2024-12 -86 -101
2025-01 5 11
2025-02 40 62
2025-03 -17 -2
2025-04 20 20
2025-05 -3 -9
2025-06 77 88
2025-07 -18 -39

4. U.S. Equities
Billions of dollars

Date SLT valuation change Estimated valuation change
2023-02 -235 -325
2023-03 306 422
2023-04 111 150
2023-05 71 60
2023-06 610 843
2023-07 377 458
2023-08 -197 -262
2023-09 -517 -667
2023-10 -264 -319
2023-11 930 1197
2023-12 682 639
2024-01 252 217
2024-02 703 775
2024-03 456 479
2024-04 -604 -678
2024-05 593 720
2024-06 316 558
2024-07 119 195
2024-08 304 383
2024-09 314 351
2024-10 -51 -144
2024-11 903 1078
2024-12 -393 -497
2025-01 503 544
2025-02 -338 -319
2025-03 -895 -1107
2025-04 -32 -105
2025-05 967 1109
2025-06 803 936
2025-07 361 435

5. Foreign Bonds
Billions of dollars

Date SLT valuation change Estimated valuation change
2023-02 -65 -89
2023-03 16 60
2023-04 19 10
2023-05 -39 -47
2023-06 -12 9
2023-07 34 18
2023-08 -39 -37
2023-09 -67 -81
2023-10 -55 -48
2023-11 94 140
2023-12 89 113
2024-01 -34 -28
2024-02 -12 -36
2024-03 7 24
2024-04 -59 -73
2024-05 19 40
2024-06 2 0
2024-07 19 57
2024-08 31 50
2024-09 22 45
2024-10 -80 -91
2024-11 2 16
2024-12 -58 -67
2025-01 3 11
2025-02 23 41
2025-03 -16 -3
2025-04 -15 25
2025-05 1 -3
2025-06 28 53
2025-07 -30 -22

6. Foreign Equities
Billions of dollars

Date SLT valuation change Estimated valuation change
2023-02 -264 -281
2023-03 115 203
2023-04 83 196
2023-05 -267 -395
2023-06 383 459
2023-07 334 388
2023-08 -364 -483
2023-09 -355 -432
2023-10 -355 -409
2023-11 701 838
2023-12 414 552
2024-01 -94 -21
2024-02 300 262
2024-03 292 304
2024-04 -246 -223
2024-05 282 348
2024-06 -67 -101
2024-07 232 302
2024-08 257 317
2024-09 216 216
2024-10 -423 -597
2024-11 42 -48
2024-12 -304 -246
2025-01 427 456
2025-02 64 240
2025-03 -151 -190
2025-04 236 356
2025-05 515 607
2025-06 396 411
2025-07 -39 -77

7. Foreign Government Bonds
Billions of dollars

Date SLT valuation change Estimated valuation change
2023-02 -22 -21
2023-03 3 13
2023-04 4 1
2023-05 -11 -10
2023-06 7 4
2023-07 8 7
2023-08 -15 -12
2023-09 -27 -21
2023-10 -13 -9
2023-11 23 33
2023-12 26 28
2024-01 -12 -10
2024-02 -1 -4
2024-03 9 6
2024-04 -18 -16
2024-05 6 8
2024-06 -6 -1
2024-07 19 13
2024-08 14 14
2024-09 11 12
2024-10 -26 -22
2024-11 4 3
2024-12 -27 -17
2025-01 1 6
2025-02 2 9
2025-03 -9 0
2025-04 10 9
2025-05 0 1
2025-06 9 15
2025-07 -13 -5

8. Foreign Corporate Bonds
Billions of dollars

Date SLT valuation change Estimated valuation change
2023-02 -43 -67
2023-03 14 47
2023-04 16 9
2023-05 -28 -38
2023-06 -18 5
2023-07 26 10
2023-08 -24 -25
2023-09 -39 -60
2023-10 -42 -39
2023-11 71 107
2023-12 63 85
2024-01 -22 -18
2024-02 -10 -31
2024-03 -2 18
2024-04 -41 -57
2024-05 13 32
2024-06 9 2
2024-07 -1 43
2024-08 17 36
2024-09 11 33
2024-10 -54 -69
2024-11 -2 13
2024-12 -31 -50
2025-01 2 5
2025-02 22 32
2025-03 -7 -3
2025-04 -24 16
2025-05 1 -4
2025-06 19 38
2025-07 -17 -17

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Figure 3: Differences between Estimated and Measured Valuation Change and Net Transactions For Long-term Cross-Border Securities

1. Treasuries
Billions of dollars

Date Est. - meas. valuation change Est. - meas. net transactions
2023-02 -16 -2
2023-03 19 -20
2023-04 -3 -50
2023-05 -2 -22
2023-06 -10 20
2023-07 -3 23
2023-08 1 10
2023-09 34 -36
2023-10 -6 31
2023-11 -6 -50
2023-12 18 34
2024-01 -24 8
2024-02 -22 3
2024-03 -19 38
2024-04 -19 -13
2024-05 14 -15
2024-06 -38 41
2024-07 20 -53
2024-08 -10 26
2024-09 7 20
2024-10 -37 -18
2024-11 -17 30
2024-12 8 -8
2025-01 10 -36
2025-02 -9 8
2025-03 6 8
2025-04 11 -17
2025-05 2 -36
2025-06 4 17
2025-07 10 18

2. Agencies
Billions of dollars

Date Est. - meas. valuation change Est. - meas. net transactions
2023-02 -4 1
2023-03 5 6
2023-04 2 -6
2023-05 0 -2
2023-06 0 -20
2023-07 3 1
2023-08 0 6
2023-09 -10 11
2023-10 -2 -1
2023-11 14 -12
2023-12 17 -22
2024-01 -1 -3
2024-02 -7 7
2024-03 6 -28
2024-04 -9 6
2024-05 8 -3
2024-06 1 50
2024-07 9 -12
2024-08 9 -16
2024-09 7 -9
2024-10 -5 -5
2024-11 9 -11
2024-12 -3 3
2025-01 -2 -2
2025-02 9 -10
2025-03 -3 1
2025-04 7 -11
2025-05 10 -9
2025-06 -2 -7
2025-07 9 3

3. U.S. Corporate Bonds
Billions of dollars

Date Est. - meas. valuation change Est. - meas. net transactions
2023-02 -15 10
2023-03 25 -28
2023-04 0 6
2023-05 -29 30
2023-06 9 -18
2023-07 -10 9
2023-08 -8 7
2023-09 -19 3
2023-10 -27 26
2023-11 39 -30
2023-12 15 83
2024-01 -19 14
2024-02 -35 40
2024-03 -5 0
2024-04 -9 -2
2024-05 15 -19
2024-06 -15 -7
2024-07 13 -12
2024-08 -13 4
2024-09 -2 5
2024-10 -30 28
2024-11 10 -8
2024-12 -15 4
2025-01 6 -2
2025-02 22 -30
2025-03 15 -23
2025-04 -1 10
2025-05 -6 7
2025-06 11 -17
2025-07 -21 17

4. U.S. Equities
Billions of dollars

Date Est. - meas. valuation change Est. - meas. net transactions
2023-02 -89 40
2023-03 116 -123
2023-04 39 -43
2023-05 -11 33
2023-06 233 -183
2023-07 81 -53
2023-08 -66 76
2023-09 -150 120
2023-10 -55 49
2023-11 267 -216
2023-12 -43 149
2024-01 -35 43
2024-02 72 -20
2024-03 23 -9
2024-04 -75 135
2024-05 128 -138
2024-06 242 -64
2024-07 77 -38
2024-08 79 -55
2024-09 36 -16
2024-10 -93 116
2024-11 176 -154
2024-12 -104 88
2025-01 41 -37
2025-02 20 -15
2025-03 -212 211
2025-04 -73 31
2025-05 142 -152
2025-06 133 -99
2025-07 74 -56

5. Foreign Bonds
Billions of dollars

Date Est. - meas. valuation change Est. - meas. net transactions
2023-02 -24 22
2023-03 44 -31
2023-04 -9 3
2023-05 -8 -9
2023-06 21 0
2023-07 -16 11
2023-08 2 -2
2023-09 -14 9
2023-10 6 -6
2023-11 46 -45
2023-12 23 -142
2024-01 6 -18
2024-02 -24 11
2024-03 18 -32
2024-04 -14 0
2024-05 21 -17
2024-06 -2 -21
2024-07 38 -26
2024-08 19 -28
2024-09 23 -22
2024-10 -11 7
2024-11 14 -3
2024-12 -9 -6
2025-01 8 -3
2025-02 18 -15
2025-03 13 3
2025-04 39 -28
2025-05 -5 0
2025-06 26 -15
2025-07 9 14

6. Foreign Equities
Billions of dollars

Date Est. - meas. valuation change Est. - meas. net transactions
2023-02 -17 -2
2023-03 88 -25
2023-04 112 -94
2023-05 -127 108
2023-06 76 -57
2023-07 54 -23
2023-08 -119 107
2023-09 -77 94
2023-10 -54 41
2023-11 136 -104
2023-12 137 -222
2024-01 73 -52
2024-02 -39 44
2024-03 12 5
2024-04 23 -7
2024-05 66 -57
2024-06 -35 27
2024-07 70 -53
2024-08 59 -89
2024-09 0 0
2024-10 -174 203
2024-11 -90 73
2024-12 59 -31
2025-01 29 -3
2025-02 176 -163
2025-03 -38 51
2025-04 120 -121
2025-05 93 -35
2025-06 15 2
2025-07 -38 83

7. Foreign Government Bonds
Billions of dollars

Date Est. - meas. valuation change Est. - meas. net transactions
2023-02 0 9
2023-03 10 -7
2023-04 -3 2
2023-05 2 -8
2023-06 -2 4
2023-07 -1 1
2023-08 3 -3
2023-09 7 1
2023-10 3 -2
2023-11 10 -9
2023-12 1 -26
2024-01 2 -3
2024-02 -3 -2
2024-03 -3 -6
2024-04 2 -3
2024-05 2 4
2024-06 5 -10
2024-07 -6 3
2024-08 0 -7
2024-09 1 -1
2024-10 3 -3
2024-11 -1 14
2024-12 10 -19
2025-01 5 6
2025-02 7 -7
2025-03 9 -1
2025-04 -1 7
2025-05 1 -3
2025-06 6 0
2025-07 8 -2

8. Foreign Corporate Bonds
Billions of dollars

Date Est. - meas. valuation change Est. - meas. net transactions
2023-02 -24 12
2023-03 33 -23
2023-04 -6 1
2023-05 -10 -2
2023-06 23 -4
2023-07 -16 11
2023-08 -2 1
2023-09 -21 8
2023-10 3 -4
2023-11 36 -36
2023-12 22 -116
2024-01 4 -15
2024-02 -21 12
2024-03 20 -26
2024-04 -16 2
2024-05 19 -21
2024-06 -7 -12
2024-07 44 -29
2024-08 19 -21
2024-09 22 -22
2024-10 -15 10
2024-11 15 -17
2024-12 -19 13
2025-01 3 -9
2025-02 11 -8
2025-03 4 3
2025-04 40 -34
2025-05 -5 4
2025-06 20 -15
2025-07 1 16

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Last Update: October 15, 2025