Forex currencies

Pound sterling vs. Polish zloty (GBPPLN) Seasonality

Over 1990 to 2025 (36 years of data), GBPPLN has tended to move short between 17.09 and 26.10, closing higher in 70.4% of those years for an average +2.24% move and an annualized Sharpe of 0.64.

Years: 1990-2025
Category: Forex currencies
Windows: 8

Best window

17.09 - 26.10

Direction

Short

Win rate

70.4%

Avg return

+2.24%

Sample

27 yrs

Average seasonal curve

Average path across the year

1990-2025

Strongest recurring windows

Window	Dir	Win rate	Avg return	Sharpe	Years
17.09 → 26.10	Short	70.4%	+2.24%	0.64	27
16.09 → 26.10	Short	70.4%	+2.11%	0.60	27
17.09 → 28.10	Short	70.4%

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Open in the seasonality screener →Browse all instruments How to read seasonality

GBPPLN average seasonal curve, 1990 to 2025
Index	Value
1	100
2	100.3479
3	100.6174
4	100.5651
5	100.3358
6	100.3439
7	100.0051
8	99.9011
9	100.068
10	100.1904
11	100.2002
12	99.9939
13	99.7135
14	99.3873
15	99.463
16	99.5265
17	99.5381
18	99.4589
19	99.5487
20	99.6521
21	99.3822
22	98.9957
23	98.6468
24	98.771
25	98.4542
26	98.6975
27	98.825
28	98.9848
29	98.847
30	99.0125
31	99.1638
32	99.4434
33	99.4231
34	99.4666
35	99.3218
36	99.298
37	99.1413
38	98.8579
39	98.9915
40	98.7362
41	98.893
42	99.1423
43	99.0021
44	98.9963
45	99.1217
46	99.297
47	99.2715
48	99.4107
49	99.4885
50	99.4824
51	99.1128
52	99.0499
53	99.3005
54	99.3005
55	98.9795
56	98.7538
57	98.6648
58	98.8571
59	98.7822
60	98.5707
61	98.3712
62	98.2479
63	98.5911
64	98.4604
65	98.5626
66	98.5482
67	98.2975
68	98.1852
69	98.0748
70	98.0195
71	97.7952
72	97.5445
73	97.616
74	98.0716
75	98.3131
76	98.2518
77	98.0235
78	98.1714
79	98.1857
80	98.4349
81	98.518
82	98.3029
83	98.1556
84	98.6682
85	98.6573
86	98.5015
87	98.775
88	98.8365
89	98.8704
90	98.8409
91	98.853
92	99.4456
93	99.8052
94	99.7738
95	99.8349
96	100.0183
97	100.1849
98	100.1096
99	100.4651
100	100.5703
101	100.599
102	100.7733
103	100.9251
104	100.8263
105	100.7375
106	100.5914
107	100.9326
108	100.7853
109	100.8678
110	100.6934
111	100.8911
112	100.8152
113	100.804
114	100.9322
115	100.9428
116	100.9627
117	100.9417
118	101.1238
119	101.2812
120	101.3335
121	101.3468
122	101.6014
123	101.6067
124	101.8495
125	101.4701
126	101.1355
127	100.5442
128	100.6801
129	100.5428
130	100.7078
131	100.9653
132	101.1839
133	101.2376
134	101.2219
135	100.9858
136	98.1652
137	97.9837
138	98.0714
139	98.3394
140	98.3971
141	98.3948
142	98.5726
143	98.8281
144	98.7315
145	98.7637
146	98.8981
147	98.8283
148	98.9559
149	98.743
150	98.8369
151	98.9149
152	99.0884
153	99.046
154	99.0433
155	98.8665
156	98.8129
157	98.6896
158	98.758
159	98.3936
160	98.4291
161	98.4242
162	98.5285
163	98.4336
164	98.4306
165	98.632
166	98.4094
167	98.6649
168	98.7838
169	98.7906
170	98.9106
171	98.7993
172	98.948
173	98.9044
174	99.0032
175	98.9451
176	99.0788
177	98.8641
178	98.9374
179	98.9574
180	99.2407
181	99.0559
182	99.2143
183	98.9426
184	99.0867
185	99.4166
186	99.236
187	99.1763
188	99.2139
189	99.5035
190	99.41
191	99.1025
192	99.0588
193	99.028
194	99.0365
195	99.1413
196	99.2034
197	98.9498
198	99.0011
199	98.8625
200	98.9818
201	98.8607
202	98.765
203	98.813
204	98.7918
205	98.8133
206	98.487
207	98.4254
208	98.7236
209	98.7467
210	98.8463
211	99.2777
212	99.1265
213	98.8628
214	98.9731
215	98.9007
216	99.087
217	98.8854
218	98.9164
219	98.763
220	98.8371
221	98.5889
222	98.1589
223	97.7897
224	97.9355
225	98.1828
226	98.2193
227	98.4978
228	98.6216
229	98.4818
230	98.2788
231	98.0895
232	98.2257
233	98.3122
234	98.4417
235	98.3097
236	98.6519
237	98.5218
238	98.1915
239	98.2168
240	98.1404
241	98.3591
242	98.3291
243	98.4058
244	98.6209
245	98.7085
246	98.3629
247	98.6215
248	98.2163
249	98.2077
250	98.1342
251	98.5595
252	98.0334
253	97.7646
254	97.8097
255	97.7423
256	98.2512
257	98.2779
258	98.4768
259	98.4691
260	98.5555
261	98.3847
262	97.9639
263	98.0832
264	97.717
265	97.3221
266	97.2956
267	97.3969
268	97.5903
269	98.0792
270	98.2372
271	98.196
272	97.8728
273	97.4916
274	97.8043
275	97.8057
276	97.7298
277	97.812
278	97.7733
279	98.1897
280	98.0893
281	98.067
282	97.778
283	97.5227
284	97.2506
285	97.3088
286	97.1071
287	97.3448
288	97.2776
289	97.0374
290	96.4677
291	96.5988
292	96.7859
293	96.5368
294	97.3436
295	97.2311
296	96.9593
297	96.9256
298	96.7144
299	96.6434
300	96.8431
301	96.6193
302	96.5835
303	97.1257
304	97.2699
305	97.1806
306	97.2203
307	97.4839
308	97.764
309	97.9002
310	97.7594
311	97.4194
312	97.3002
313	97.4068
314	97.5048
315	97.8111
316	97.6228
317	97.622
318	97.1916
319	97.1235
320	97.2103
321	97.0859
322	97.3599
323	97.3562
324	97.4416
325	97.2997
326	97.2366
327	97.1541
328	97.0928
329	97.3748
330	97.3406
331	97.6115
332	97.7899
333	97.8628
334	97.9004
335	98.0865
336	97.7961
337	97.7528
338	98.1487
339	98.0552
340	97.8676
341	97.6095
342	97.5476
343	97.6753
344	97.7036
345	97.8053
346	97.7676
347	97.5744
348	97.5257
349	97.6022
350	98.238
351	98.1941
352	97.7969
353	97.8172
354	97.9199
355	98.2786
356	98.758
357	99.1604
358	99.2058
359	99.2016
360	99.2061
361	99.2412
362	99.364
363	99.7285
364	99.8538
365	99.9549
366	99.9765

GBPPLN average seasonal curve, 1990 to 2025

Index

Value

100

100.3479

100.6174

100.5651

100.3358

100.3439

100.0051

99.9011

100.068

100.1904

100.2002

99.9939

99.7135

99.3873

99.463

99.5265

99.5381

99.4589

99.5487

99.6521

99.3822

98.9957

98.6468

98.771

98.4542

98.6975

98.825

98.9848

98.847

99.0125

99.1638

99.4434

99.4231

99.4666

99.3218

99.298

99.1413

98.8579

98.9915

98.7362

98.893

99.1423

99.0021

98.9963

99.1217

99.297

99.2715

99.4107

99.4885

99.4824

99.1128

99.0499

99.3005

98.9795

98.7538

98.6648

98.8571

98.7822

98.5707

98.3712

98.2479

98.5911

98.4604

98.5626

98.5482

98.2975

98.1852

98.0748

98.0195

97.7952

97.5445

97.616

98.0716

98.3131

98.2518

98.0235

98.1714

98.1857

98.4349

98.518

98.3029

98.1556

98.6682

98.6573

98.5015

98.775

98.8365

98.8704

98.8409

98.853

99.4456

99.8052

99.7738

99.8349

100.0183

100.1849

100.1096

100.4651

100

100.5703

101

100.599

102

100.7733

103

100.9251

104

100.8263

105

100.7375

106

100.5914

107

100.9326

108

100.7853

109

100.8678

110

100.6934

111

100.8911

112

100.8152

113

100.804

114

100.9322

115

100.9428

116

100.9627

117

100.9417

118

101.1238

119

101.2812

120

101.3335

121

101.3468

122

101.6014

123

101.6067

124

101.8495

125

101.4701

126

101.1355

127

100.5442

128

100.6801

129

100.5428

130

100.7078

131

100.9653

132

101.1839

133

101.2376

134

101.2219

135

100.9858

136

98.1652

137

97.9837

138

98.0714

139

98.3394

140

98.3971

141

98.3948

142

98.5726

143

98.8281

144

98.7315

145

98.7637

146

98.8981

147

98.8283

148

98.9559

149

98.743

150

98.8369

151

98.9149

152

99.0884

153

99.046

154

99.0433

155

98.8665

156

98.8129

157

98.6896

158

98.758

159

98.3936

160

98.4291

161

98.4242

162

98.5285

163

98.4336

164

98.4306

165

98.632

166

98.4094

167

98.6649

168

98.7838

169

98.7906

170

98.9106

171

98.7993

172

98.948

173

98.9044

174

99.0032

175

98.9451

176

99.0788

177

98.8641

178

98.9374

179

98.9574

180

99.2407

181

99.0559

182

99.2143

183

98.9426

184

99.0867

185

99.4166

186

99.236

187

99.1763

188

99.2139

189

99.5035

190

99.41

191

99.1025

192

99.0588

193

99.028

194

99.0365

195

99.1413

196

99.2034

197

98.9498

198

99.0011

199

98.8625

200

98.9818

201

98.8607

202

98.765

203

98.813

204

98.7918

205

98.8133

206

98.487

207

98.4254

208

98.7236

209

98.7467

210

98.8463

211

99.2777

212

99.1265

213

98.8628

214

98.9731

215

98.9007

216

99.087

217

98.8854

218

98.9164

219

98.763

220

98.8371

221

98.5889

222

98.1589

223

97.7897

224

97.9355

225

98.1828

226

98.2193

227

98.4978

228

98.6216

229

98.4818

230

98.2788

231

98.0895

232

98.2257

233

98.3122

234

98.4417

235

98.3097

236

98.6519

237

98.5218

238

98.1915

239

98.2168

240

98.1404

241

98.3591

242

98.3291

243

98.4058

244

98.6209

245

98.7085

246

98.3629

247

98.6215

248

98.2163

249

98.2077

250

98.1342

251

98.5595

252

98.0334

253

97.7646

254

97.8097

255

97.7423

256

98.2512

257

98.2779

258

98.4768

259

98.4691

260

98.5555

261

98.3847

262

97.9639

263

98.0832

264

97.717

265

97.3221

266

97.2956

267

97.3969

268

97.5903

269

98.0792

270

98.2372

271

98.196

272

97.8728

273

97.4916

274

97.8043

275

97.8057

276

97.7298

277

97.812

278

97.7733

279

98.1897

280

98.0893

281

98.067

282

97.778

283

97.5227

284

97.2506

285

97.3088

286

97.1071

287

97.3448

288

97.2776

289

97.0374

290

96.4677

291

96.5988

292

96.7859

293

96.5368

294

97.3436

295

97.2311

296

96.9593

297

96.9256

298

96.7144

299

96.6434

300

96.8431

301

96.6193

302

96.5835

303

97.1257

304

97.2699

305

97.1806

306

97.2203

307

97.4839

308

97.764

309

97.9002

310

97.7594

311

97.4194

312

97.3002

313

97.4068

314

97.5048

315

97.8111

316

97.6228

317

97.622

318

97.1916

319

97.1235

320

97.2103

321

97.0859

322

97.3599

323

97.3562

324

97.4416

325

97.2997

326

97.2366

327

97.1541

328

97.0928

329

97.3748

330

97.3406

331

97.6115

332

97.7899

333

97.8628

334

97.9004

335

98.0865

336

97.7961

337

97.7528

338

98.1487

339

98.0552

340

97.8676

341

97.6095

342

97.5476

343

97.6753

344

97.7036

345

97.8053

346

97.7676

347

97.5744

348

97.5257

349

97.6022

350

98.238

351

98.1941

352

97.7969

353

97.8172

354

97.9199

355

98.2786

356

98.758

357

99.1604

358

99.2058

359

99.2016

360

99.2061

361

99.2412

362

99.364

363

99.7285

364

99.8538

365

99.9549

366

99.9765