Example B - Retrospective Amortization

This example illustrates Rollback/Replay and Retro Amortization, the second Eagle Accounting processing principle.

Security 31283HQ32 is purchased into entity Retrodemo with a Trade Date of 20020301, Settle Date of 20020304, Par of 1,000,000.00.00 and Price of 101.7. The accounting basis and security combination utilizes the Default amortization method, pro-rata lot paydown costing method, Constant Yield 2 amortization method and has None for a Prepayment Assumption. (A value of None for a prepayment assumption is the equivalent of a zero CPR.)

You process the MBS factors, and run the earnings thru 20020430. Then the retrospective amortization is run on 20020430.

The following tables describe the security, entity, and factors used for this example.

Security Information Option

Value

Security Information Option

Value

Investment Type

FI

Processing Security Type

DBFBFB

Quantity Type

PAR

Price Multiplier

0.0100

Quantity Scale

1.00

Issue Country

UNITED STATES

Issue Country Code

US

Asset Currency

USD

Coupon

7.000000

Coupon Type Code

Fixed

Day Count Basis

30/360

Payment Frequency

Monthly

Payment Frequency Code

1_M

Interest Payment Timing

Same Day of Month

Issue Price

100.00000000

Issue Date

20020301

Dated Date

20020301

First Coupon Date

20020401

Last Coupon Date

20320301

Maturity Date

20320301

Maturity Price

100.00

Delay Days

14.00

WAM Original Months

359

WAM Original Remain Months

359

WAC Current

7.500000

WAC Original

7.500000

CPR 1month

32.50000000

CPR 3month

28.00000000

CPR 6month

43.00000000

CPR 12month

27.00000000

CPR Life

25.25000000

PSA 1month

125.0000

PSA 3month

175.0000

PSA 6month

250.0000

PSA 12month

198.0000

PSA Life

 

 

Entity Information Option

Value

Entity Information Option

Value

Entity ID

TAXDEMO2

Portfolio Country

United States

Amortization Method

Constant Yield 2

Prepayment Assumption

None

 

Date

Factor

Date

Factor

4/1/2002

0.9760203

3/1/2002

1.00

Results

When the amortization yield is calculated on the first day of earnings (Settlement Date), Eagle Accounting calculates an Amortization Yield 6.831580317367, based on the cash flows that appear in the following table. Because there are zero prepayment assumptions, Eagle Accounting calculates only schedule principal cash flow. With the first Paydown on 20020401, you receive an additional $23,237.55 dollars of unscheduled principal:

Unscheduled Principal = 23,979.70 of actual Principal Payment,
minus
$742.15 of Scheduled Principal received

If you ran a retrospective amortization calculation from Settlement Date to 20040430:

Eagle Accounting uses the actual cash flow that has transpired for the retrospective period, and calculates the future cash flows based on both the actual cash flows and projected future cash flows to generate the new amortization yield for the retrospective amortization period. It would be 6.831580317367. The retrospective amortization is applied retrospectively from the target redemption date, to the retrospective amortization earn thru date. You see an amortization entry on 4/30/04 to bring the current open position in line, based on the actual cash flows received, future projected cash flow, current period amortization and start of the coupon period amortize cost.

End of Cash Flow Period

Coupon Cash Flow

Standard Principal Cash Flows

End of Cash Flow Period

Coupon Cash Flow

Standard Principal Cash Flows

1

$ 5,833.33

$ 742.15

2

$ 5,829.00

$ 746.78

3

$ 5,824.65

$ 751.45

4

$ 5,820.26

$ 756.15

5

$ 5,815.85

$ 760.87

6

$ 5,811.42

$ 765.63

7

$ 5,806.95

$ 770.41

8

$ 5,802.45

$ 775.23

9

$ 5,797.93

$ 780.07

10

$ 5,793.38

$ 784.95

11

$ 5,788.80

$ 789.86

12

$ 5,784.20

$ 794.79

13

$ 5,779.56

$ 799.76

14

$ 5,774.89

$ 804.76

15

$ 5,770.20

$ 809.79

16

$ 5,765.48

$ 814.85

17

$ 5,760.72

$ 819.94

18

$ 5,755.94

$ 825.07

19

$ 5,751.13

$ 830.22

20

$ 5,746.28

$ 835.41

21

$ 5,741.41

$ 840.63

22

$ 5,736.51

$ 845.89

23

$ 5,731.57

$ 851.17

24

$ 5,726.61

$ 856.49

25

$ 5,721.61

$ 861.85

26

$ 5,716.58

$ 867.23

27

$ 5,711.53

$ 872.65

28

$ 5,706.43

$ 878.11

29

$ 5,701.31

$ 883.60

30

$ 5,696.16

$ 889.12

31

$ 5,690.97

$ 894.68

32

$ 5,685.75

$ 900.27

33

$ 5,680.50

$ 905.89

34

$ 5,675.22

$ 911.56

35

$ 5,669.90

$ 917.25

36

$ 5,664.55

$ 922.99

37

$ 5,659.16

$ 928.76

38

$ 5,653.75

$ 934.56

39

$ 5,648.30

$ 940.40

40

$ 5,642.81

$ 946.28

41

$ 5,637.29

$ 952.19

42

$ 5,631.74

$ 958.14

43

$ 5,626.15

$ 964.13

44

$ 5,620.52

$ 970.16

45

$ 5,614.86

$ 976.22

46

$ 5,609.17

$ 982.32

47

$ 5,603.44

$ 988.46

48

$ 5,597.67

$ 994.64

49

$ 5,591.87

$ 1,000.86

50

$ 5,586.03

$ 1,007.11

51

$ 5,580.16

$ 1,013.41

52

$ 5,574.24

$ 1,019.74

53

$ 5,568.30

$ 1,026.11

54

$ 5,562.31

$ 1,032.53

55

$ 5,556.29

$ 1,038.98

56

$ 5,550.23

$ 1,045.47

57

$ 5,544.13

$ 1,052.01

58

$ 5,537.99

$ 1,058.58

59

$ 5,531.82

$ 1,065.20

60

$ 5,525.60

$ 1,071.86

61

$ 5,519.35

$ 1,078.56

62

$ 5,513.06

$ 1,085.30

63

$ 5,506.73

$ 1,092.08

64

$ 5,500.36

$ 1,098.90

65

$ 5,493.95

$ 1,105.77

66

$ 5,487.50

$ 1,112.68

67

$ 5,481.01

$ 1,119.64

68

$ 5,474.48

$ 1,126.64

69

$ 5,467.90

$ 1,133.68

70

$ 5,461.29

$ 1,140.76

71

$ 5,454.64

$ 1,147.89

72

$ 5,447.94

$ 1,155.07

73

$ 5,441.20

$ 1,162.29

74

$ 5,434.42

$ 1,169.55

75

$ 5,427.60

$ 1,176.86

76

$ 5,420.73

$ 1,184.22

77

$ 5,413.83

$ 1,191.62

78

$ 5,406.88

$ 1,199.06

79

$ 5,399.88

$ 1,206.56

80

$ 5,392.84

$ 1,214.10

81

$ 5,385.76

$ 1,221.69

82

$ 5,378.63

$ 1,229.32

83

$ 5,371.46

$ 1,237.01

84

$ 5,364.25

$ 1,244.74

85

$ 5,356.99

$ 1,252.52

86

$ 5,349.68

$ 1,260.35

87

$ 5,342.33

$ 1,268.22

88

$ 5,334.93

$ 1,276.15

89

$ 5,327.49

$ 1,284.13

90

$ 5,319.99

$ 1,292.15

91

$ 5,312.46

$ 1,300.23

92

$ 5,304.87

$ 1,308.35

93

$ 5,297.24

$ 1,316.53

94

$ 5,289.56

$ 1,324.76

95

$ 5,281.83

$ 1,333.04

96

$ 5,274.06

$ 1,341.37

97

$ 5,266.23

$ 1,349.75

98

$ 5,258.36

$ 1,358.19

99

$ 5,250.44

$ 1,366.68

100

$ 5,242.46

$ 1,375.22

101

$ 5,234.44

$ 1,383.82

102

$ 5,226.37

$ 1,392.46

103

$ 5,218.25

$ 1,401.17

104

$ 5,210.07

$ 1,409.92

105

$ 5,201.85

$ 1,418.74

106

$ 5,193.57

$ 1,427.60

107

$ 5,185.24

$ 1,436.53

108

$ 5,176.86

$ 1,445.50

109

$ 5,168.43

$ 1,454.54

110

$ 5,159.95

$ 1,463.63

111

$ 5,151.41

$ 1,472.78

112

$ 5,142.82

$ 1,481.98

113

$ 5,134.17

$ 1,491.24

114

$ 5,125.47

$ 1,500.56

115

$ 5,116.72

$ 1,509.94

116

$ 5,107.91

$ 1,519.38

117

$ 5,099.05

$ 1,528.88

118

$ 5,090.13

$ 1,538.43

119

$ 5,081.16

$ 1,548.05

120

$ 5,072.13

$ 1,557.72

121

$ 5,063.04

$ 1,567.46

122

$ 5,053.90

$ 1,577.26

123

$ 5,044.70

$ 1,587.11

124

$ 5,035.44

$ 1,597.03

125

$ 5,026.12

$ 1,607.01

126

$ 5,016.75

$ 1,617.06

127

$ 5,007.32

$ 1,627.16

128

$ 4,997.82

$ 1,637.33

129

$ 4,988.27

$ 1,647.57

130

$ 4,978.66

$ 1,657.86

131

$ 4,968.99

$ 1,668.23

132

$ 4,959.26

$ 1,678.65

133

$ 4,949.47

$ 1,689.14

134

$ 4,939.61

$ 1,699.70

135

$ 4,929.70

$ 1,710.32

136

$ 4,919.72

$ 1,721.01

137

$ 4,909.68

$ 1,731.77

138

$ 4,899.58

$ 1,742.59

139

$ 4,889.42

$ 1,753.49

140

$ 4,879.19

$ 1,764.44

141

$ 4,868.89

$ 1,775.47

142

$ 4,858.54

$ 1,786.57

143

$ 4,848.12

$ 1,797.74

144

$ 4,837.63

$ 1,808.97

145

$ 4,827.08

$ 1,820.28

146

$ 4,816.46

$ 1,831.65

147

$ 4,805.77

$ 1,843.10

148

$ 4,795.02

$ 1,854.62

149

$ 4,784.20

$ 1,866.21

150

$ 4,773.32

$ 1,877.88

151

$ 4,762.36

$ 1,889.61

152

$ 4,751.34

$ 1,901.42

153

$ 4,740.25

$ 1,913.31

154

$ 4,729.09

$ 1,925.26

155

$ 4,717.86

$ 1,937.30

156

$ 4,706.56

$ 1,949.41

157

$ 4,695.18

$ 1,961.59

158

$ 4,683.74

$ 1,973.85

159

$ 4,672.23

$ 1,986.19

160

$ 4,660.64

$ 1,998.60

161

$ 4,648.98

$ 2,011.09

162

$ 4,637.25

$ 2,023.66

163

$ 4,625.45

$ 2,036.31

164

$ 4,613.57

$ 2,049.04

165

$ 4,601.62

$ 2,061.84

166

$ 4,589.59

$ 2,074.73

167

$ 4,577.49

$ 2,087.70

168

$ 4,565.31

$ 2,100.74

169

$ 4,553.05

$ 2,113.87

170

$ 4,540.72

$ 2,127.08

171

$ 4,528.31

$ 2,140.38

172

$ 4,515.83

$ 2,153.76

173

$ 4,503.27

$ 2,167.22

174

$ 4,490.62

$ 2,180.76

175

$ 4,477.90

$ 2,194.39

176

$ 4,465.10

$ 2,208.11

177

$ 4,452.22

$ 2,221.91

178

$ 4,439.26

$ 2,235.79

179

$ 4,426.22

$ 2,249.77

180

$ 4,413.09

$ 2,263.83

181

$ 4,399.89

$ 2,277.98

182

$ 4,386.60

$ 2,292.22

183

$ 4,373.23

$ 2,306.54

184

$ 4,359.77

$ 2,320.96

185

$ 4,346.24

$ 2,335.46

186

$ 4,332.61

$ 2,350.06

187

$ 4,318.90

$ 2,364.75

188

$ 4,305.11

$ 2,379.53

189

$ 4,291.23

$ 2,394.40

190

$ 4,277.26

$ 2,409.37

191

$ 4,263.21

$ 2,424.42

192

$ 4,249.06

$ 2,439.58

193

$ 4,234.83

$ 2,454.82

194

$ 4,220.51

$ 2,470.17

195

$ 4,206.10

$ 2,485.61

196

$ 4,191.60

$ 2,501.14

197

$ 4,177.01

$ 2,516.77

198

$ 4,162.33

$ 2,532.50

199

$ 4,147.56

$ 2,548.33

200

$ 4,132.70

$ 2,564.26

201

$ 4,117.74

$ 2,580.28

202

$ 4,102.69

$ 2,596.41

203

$ 4,087.54

$ 2,612.64

204

$ 4,072.30

$ 2,628.97

205

$ 4,056.96

$ 2,645.40

206

$ 4,041.53

$ 2,661.93

207

$ 4,026.00

$ 2,678.57

208

$ 4,010.38

$ 2,695.31

209

$ 3,994.66

$ 2,712.16

210

$ 3,978.84

$ 2,729.11

211

$ 3,962.92

$ 2,746.16

212

$ 3,946.90

$ 2,763.33

213

$ 3,930.78

$ 2,780.60

214

$ 3,914.56

$ 2,797.98

215

$ 3,898.24

$ 2,815.46

216

$ 3,881.81

$ 2,833.06

217

$ 3,865.29

$ 2,850.77

218

$ 3,848.66

$ 2,868.58

219

$ 3,831.92

$ 2,886.51

220

$ 3,815.08

$ 2,904.55

221

$ 3,798.14

$ 2,922.71

222

$ 3,781.09

$ 2,940.97

223

$ 3,763.94

$ 2,959.36

224

$ 3,746.67

$ 2,977.85

225

$ 3,729.30

$ 2,996.46

226

$ 3,711.82

$ 3,015.19

227

$ 3,694.24

$ 3,034.04

228

$ 3,676.54

$ 3,053.00

229

$ 3,658.73

$ 3,072.08

230

$ 3,640.81

$ 3,091.28

231

$ 3,622.77

$ 3,110.60

232

$ 3,604.63

$ 3,130.04

233

$ 3,586.37

$ 3,149.60

234

$ 3,568.00

$ 3,169.29

235

$ 3,549.51

$ 3,189.10

236

$ 3,530.91

$ 3,209.03

237

$ 3,512.19

$ 3,229.09

238

$ 3,493.35

$ 3,249.27

239

$ 3,474.40

$ 3,269.58

240

$ 3,455.33

$ 3,290.01

241

$ 3,436.13

$ 3,310.57

242

$ 3,416.82

$ 3,331.26

243

$ 3,397.39

$ 3,352.08

244

$ 3,377.84

$ 3,373.04

245

$ 3,358.16

$ 3,394.12

246

$ 3,338.36

$ 3,415.33

247

$ 3,318.44

$ 3,436.68

248

$ 3,298.39

$ 3,458.16

249

$ 3,278.22

$ 3,479.77

250

$ 3,257.92

$ 3,501.52

251

$ 3,237.49

$ 3,523.40

252

$ 3,216.94

$ 3,545.42

253

$ 3,196.26

$ 3,567.58

254

$ 3,175.45

$ 3,589.88

255

$ 3,154.51

$ 3,612.32

256

$ 3,133.44

$ 3,634.89

257

$ 3,112.23

$ 3,657.61

258

$ 3,090.90

$ 3,680.47

259

$ 3,069.43

$ 3,703.47

260

$ 3,047.82

$ 3,726.62

261

$ 3,026.08

$ 3,749.91

262

$ 3,004.21

$ 3,773.35

263

$ 2,982.20

$ 3,796.93

264

$ 2,960.05

$ 3,820.66

265

$ 2,937.76

$ 3,844.54

266

$ 2,915.34

$ 3,868.57

267

$ 2,892.77

$ 3,892.75

268

$ 2,870.06

$ 3,917.08

269

$ 2,847.21

$ 3,941.56

270

$ 2,824.22

$ 3,966.20

271

$ 2,801.08

$ 3,990.98

272

$ 2,777.80

$ 4,015.93

273

$ 2,754.38

$ 4,041.03

274

$ 2,730.80

$ 4,066.28

275

$ 2,707.08

$ 4,091.70

276

$ 2,683.22

$ 4,117.27

277

$ 2,659.20

$ 4,143.00

278

$ 2,635.03

$ 4,168.90

279

$ 2,610.71

$ 4,194.95

280

$ 2,586.24

$ 4,221.17

281

$ 2,561.62

$ 4,247.55

282

$ 2,536.84

$ 4,274.10

283

$ 2,511.91

$ 4,300.81

284

$ 2,486.82

$ 4,327.69

285

$ 2,461.58

$ 4,354.74

286

$ 2,436.17

$ 4,381.96

287

$ 2,410.61

$ 4,409.35

288

$ 2,384.89

$ 4,436.91

289

$ 2,359.01

$ 4,464.64

290

$ 2,332.96

$ 4,492.54

291

$ 2,306.76

$ 4,520.62

292

$ 2,280.39

$ 4,548.87

293

$ 2,253.85

$ 4,577.30

294

$ 2,227.15

$ 4,605.91

295

$ 2,200.28

$ 4,634.70

296

$ 2,173.25

$ 4,663.67

297

$ 2,146.04

$ 4,692.81

298

$ 2,118.67

$ 4,722.14

299

$ 2,091.12

$ 4,751.66

300

$ 2,063.40

$ 4,781.35

301

$ 2,035.51

$ 4,811.24

302

$ 2,007.45

$ 4,841.31

303

$ 1,979.21

$ 4,871.57

304

$ 1,950.79

$ 4,902.01

305

$ 1,922.19

$ 4,932.65

306

$ 1,893.42

$ 4,963.48

307

$ 1,864.47

$ 4,994.50

308

$ 1,835.33

$ 5,025.72

309

$ 1,806.02

$ 5,057.13

310

$ 1,776.52

$ 5,088.74

311

$ 1,746.83

$ 5,120.54

312

$ 1,716.96

$ 5,152.54

313

$ 1,686.91

$ 5,184.75

314

$ 1,656.66

$ 5,217.15

315

$ 1,626.23

$ 5,249.76

316

$ 1,595.60

$ 5,282.57

317

$ 1,564.79

$ 5,315.59

318

$ 1,533.78

$ 5,348.81

319

$ 1,502.58

$ 5,382.24

320

$ 1,471.18

$ 5,415.88

321

$ 1,439.59

$ 5,449.73

322

$ 1,407.80

$ 5,483.79

323

$ 1,375.81

$ 5,518.06

324

$ 1,343.62

$ 5,552.55

325

$ 1,311.23

$ 5,587.25

326

$ 1,278.64

$ 5,622.17

327

$ 1,245.85

$ 5,657.31

328

$ 1,212.84

$ 5,692.67

329

$ 1,179.64

$ 5,728.25

330

$ 1,146.22

$ 5,764.05

331

$ 1,112.60

$ 5,800.08

332

$ 1,078.76

$ 5,836.33

333

$ 1,044.72

$ 5,872.80

334

$ 1,010.46

$ 5,909.51

335

$ 975.99

$ 5,946.44

336

$ 941.30

$ 5,983.61

337

$ 906.40

$ 6,021.01

338

$ 871.28

$ 6,058.64

339

$ 835.93

$ 6,096.50

340

$ 800.37

$ 6,134.61

341

$ 764.59

$ 6,172.95

342

$ 728.58

$ 6,211.53

343

$ 692.34

$ 6,250.35

344

$ 655.88

$ 6,289.41

345

$ 619.19

$ 6,328.72

346

$ 582.28

$ 6,368.28

347

$ 545.13

$ 6,408.08

348

$ 507.75

$ 6,448.13

349

$ 470.13

$ 6,488.43

350

$ 432.28

$ 6,528.98

351

$ 394.20

$ 6,569.79

352

$ 355.87

$ 6,610.85

353

$ 317.31

$ 6,652.17

354

$ 278.51

$ 6,693.75

355

$ 239.46

$ 6,735.58

356

$ 200.17

$ 6,777.68

357

$ 160.63

$ 6,820.04

358

$ 120.85

$ 6,862.66

359

$ 80.82

$ 6,905.56

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